垂体后叶素对小鼠离体子宫的影响的实验里,子宫的灌流液是台式液。
查看答案
对于无产道障碍而宫缩无力的难产,可用小剂量缩宫素加强子宫的收缩性能,促进分娩。
A. 对
B. 错
_______ was reported in the newspaper, seventeen passengers had been killed inthe traffic accident.
A. It
B. As
C. What
D. That
I have reached a point in my life ______ I am supposed to make decisions of myown.
A. Which
B. Where
C. How
D. Why
This is the school ____ we visited three days ago.
A. where
B. /
C. when
D. what
微信支付 
支付宝支付