问题
问答题
试述孕激素对子宫的生理作用。
答案
参考答案：
孕激素在雌激素作用的基础上发挥效应。能降低子宫平滑肌的兴奋性和降低妊娠子宫对缩宫素的敏感性；有利于胚胎及胎儿在宫腔内的生长发育。
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试述孕激素对子宫的生理作用。
参考答案：
孕激素在雌激素作用的基础上发挥效应。能降低子宫平滑肌的兴奋性和降低妊娠子宫对缩宫素的敏感性；有利于胚胎及胎儿在宫腔内的生长发育。
Mr. and Mrs. White are teachers. They teach English in a big school. They go to 1 by car. They 2 home at eight o’clock in the morning and come back at four in the afternoon. They have two children. One is Tom. 3 is Ann. They are students. They are in 4 classes in the same school. They go to school on their bikes. It takes 10 minutes to get there. Some of their friends 5 to school too. After they get home, Tom and Ann do 6 homework. Mrs. White does the cooking for her family. Mr. White reads the newspaper. But 7 Mr. White helps his wife 8 their supper. After supper. 9 watch TV. The two children usually go to bed 10 from Sunday night to Thursday night, because the next day they must go to school.
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