She turned out to be an organizer par excellence.

结果表明她是个优织者。

The TV programme was not up to par tonight.

今晚电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相下。

These 2 things are on a par (with each other).

这两件东西是同等。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体平坦部玻璃体切除术切除脱位晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己工资与在公司里地位不相符。

This currency exchanges at par.

这货币平价兑换。

Your shares are at par.

你股金与票价值相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件开发和服务。具有自主知识产权核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗10例患者资料进行回顾性分析，并从定位诊断、手术适应证、围手术期处理等方进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购12%息票率长期债券存在话，也会卖远远超过票价值。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生心肺功能、身体形态、以及部分身体素质具有积极促进和改善作用。

She turned out to be an organizer par excellence.

结果表明她是个优秀组织者。

The TV programme was not up to par tonight.

今晚电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看，纳什是杰出摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员，觉得他们不相上下。

These 2 things are on a par (with each other).

这两件东西是同等。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体平坦部玻璃体切除术切除脱位晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己工资与在公司里地位不相符。

This currency exchanges at par.

这货币平价兑换。

Your shares are at par.

你股金与票面价值相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件开发和服务。具有自主知识产权核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗10例患者资料进行回顾性分析，并从定位诊断、手术适应证、围手术期处理等方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购12%息票率长期债券存在话，也会卖远远超过票面价值。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生心肺功能、身体形态、以及部分身体素质具有积极促进和改善作用。

She turned out to be an organizer par excellence.

结果表明她是个优秀组织者。

The TV programme was not up to par tonight.

今晚电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相下。

These 2 things are on a par (with each other).

这两件东西是同等。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫体平坦部玻璃体切除术切除脱位体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己工资与在公司里地位不相符。

This currency exchanges at par.

这货币平价兑换。

Your shares are at par.

你股金与票面价值相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件开发和服务。具有自主知识产权核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗10例患者资料进行回顾性分析，并从定位诊断、手术适应证、围手术期处理等方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购12%息票率长期债券存在话，也会卖远远过票面价值。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲腺激素(TSH)阳性细胞影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生心肺功能、身体形态、及部分身体素质具有积极促进和改善作用。

She turned out to be an organizer par excellence.

结果表明她个优秀的组织者。

The TV programme was not up to par tonight.

今晚的电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，杰出的摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相上下。

These 2 things are on a par (with each other).

这两件东西同等的。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体平坦部玻璃体切除术切除脱位的晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己的工资与在公司里的地位不相符。

This currency exchanges at par.

这货币平兑换。

Your shares are at par.

你的股金与票面相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新的转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件的开发和服务。具有自主知识产权的核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗的10例患者资料进行回顾性分析，并从定位诊断、手术适应证、围手术期处理等方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，法回购的12%息票率的长期债券存在的话，也会卖的远远超过票面的。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞的功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞的影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生的心肺功能、身体形态、以及部分身体素质具有积极的促进和改善作用。

She turned out to be an organizer par excellence.

结果表明她是个优秀的组织者。

The TV programme was not up to par tonight.

今晚的电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出的摄政时期风格建筑师。

As actors, I would say they were on a par.

员来讲，我觉得他们不相上下。

These 2 things are on a par (with each other).

这两件东西是同等的。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体平坦部玻璃体切除术切除脱位的晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己的工资与在公司里的地位不相符。

This currency exchanges at par.

这货币平兑换。

Your shares are at par.

你的股金与值相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新的转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件的开发和服务。具有自主知识产权的核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗的10例患者资料进行回顾性分析，并从定位诊断、手术适应证、围手术期处理等方进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购的12%息率的长期债券存在的话，也会卖的远远超过值的。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞的功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞的影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生的心肺功能、身体形态、以及部分身体素质具有积极的促进和改善用。

She turned out to be an organizer par excellence.

结果表明她是个优秀组织者。

The TV programme was not up to par tonight.

今晚电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相上下。

These 2 things are on a par (with each other).

这两件东西是同等。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体平坦部玻璃体切除术切除脱位晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己工资与在公地位不相符。

This currency exchanges at par.

这货币平价兑换。

Your shares are at par.

你股金与票面价值相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公专门从事移动多媒体即时通软件开发和服务。具有自主知识产权核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗10例患者资料进行回顾性分析，并从定位诊断、手术适应证、围手术期处理等方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购12%息票率长期债券存在话，也会卖远远超过票面价值。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生心肺功能、身体形态、以及部分身体素质具有积极促进和改善作用。

She turned out to be an organizer par excellence.

结果表明她是个优秀的组织者。

The TV programme was not up to par tonight.

今晚的电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出的摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相上下。

These 2 things are on a par (with each other).

这两件东西是同的。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采睫状体平坦玻璃体切除术切除脱位的晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己的工资与在公司里的地位不相符。

This currency exchanges at par.

这货币平价兑换。

Your shares are at par.

你的股金与票面价值相。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更)通过在测试阶段的转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件的开发和服务。具有自主知识产权的核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗的10例患者资料进行回顾性析，并从定位诊断、手术适应证、围手术期处理方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高级，无法回购的12%息票率的长期债券存在的话，也会卖的远远超过票面价值的。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧ACTH阳性细胞的功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧促甲状腺激素(TSH)阳性细胞的影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生的心肺功能、身体形态、以及身体素质具有积极的促进和改善作。

She turned out to be an organizer par excellence.

结果表明她是个优秀的织者。

The TV programme was not up to par tonight.

今晚的电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出的摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相上下。

These 2 things are on a par (with each other).

这两件东西是同等的。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体平坦部玻璃体切除术切除脱位的晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己的工资与在公司里的地位不相符。

This currency exchanges at par.

这货币平价兑换。

Your shares are at par.

你的股金与票面价值相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期新)通过在测试阶段使用新的转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件的开发和服务。具有自主知识产权的核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗的10例患者资料进行回顾性分析，并从位诊断、手术适应证、围手术期处理等方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购的12%息票率的长期债券存在的话，也会卖的远远超过票面价值的。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞的功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞的影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练对非体育专业大学生的心肺功能、身体形态、以及部分身体素质具有积极的促进和改善作用。

She turned out to be an organizer par excellence.

结果表明她是个优秀的组织者。

The TV programme was not up to par tonight.

今晚的电视切目如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出的摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们上下。

These 2 things are on a par (with each other).

这两件东西是同等的。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体平坦部玻璃体切除术切除脱的晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己的工资与在公司里的地符。

This currency exchanges at par.

这货币平兑换。

Your shares are at par.

你的股金与票面等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新的转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件的开发和服务。具有自主知识产权的核心技术。技术能力在国际同行中处于领先地。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗的10例患者资料进行回顾性分析，并从定诊断、手术适应证、围手术期处理等方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购的12%息票率的长期债券存在的话，也会卖的远远超过票面的。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞的功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞的影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生的心肺功能、身体形态、以及部分身体素质具有积极的促进和改善作用。

She turned out to be an organizer par excellence.

结果表明她是个优秀组织者。

The TV programme was not up to par tonight.

电视切目不如往常好。

Nash is, to many, the Regency architect par excellence.

在许多人看来，纳什是杰出摄政时期风格建筑师。

As actors, I would say they were on a par.

作为演员来讲，我觉得他们不相上下。

These 2 things are on a par (with each other).

这两件东西是同等。

Methods All patients with dislocated-lens underwent pars plana vitrectomy and lensectomy.

方法采用睫状体坦部玻璃体切除术切除脱位晶状体。

He doesn’t think his salary is on a par with his position in the company.

他觉得自己工资与在公司里地位不相符。

This currency exchanges at par.

这货币兑换。

Your shares are at par.

你股金与票面相等。

Early Binding Updates mitigate this issue by already using a new care-of address in par allel with testing it.

早期绑定更新)通过在测试阶段使用新转交地址缓解了这个问题。

PepTalk has its proprietary technology in this area and its core technologies are on par with world leading competitors.

公司专门从事移动多媒体即时通软件开发和服务。具有自主知识产权核心技术。技术能力在国际同行中处于领先地位。

10 cases of CRF with SHP were treated with parathyroidectomy combined with par athyroid tissue transplantation in forearm from 1995 to 2001.

对1995年12月～2001年9月经此方法治疗10例患者资料进行回顾性分析，并从定位诊断、手术适应证、围手术期处理等方面进行讨论。

If, during this period, a high-grade, noncallable, long-term bond with a 12 percent coupon had existed, it would have sold far above par.

如果在这一时期，一个高等级，无法回购12%息票率长期债券存在话，也会卖远远超过票面。

Conclusion Selenium can promote the function of the ACTH positive cells in the pars distalis of rat pituitary with colon mucosa cancer induced by AOM.

结论 硒可增强AOM所致大鼠结肠癌形成过程中垂体远侧部ACTH阳性细胞功能。

Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞影响。

The results showed that doing Baduanjin is helpful to strengthen the heart and lung functions, keep body appearance and increase pars of the body qualities for the non-PE majors.

结果表明，八段锦练习对非体育专业大学生心肺功能、身体形态、以及部分身体素质具有积极促进和改善作用。