产科的理想肌松药应具备以下哪些条件（）
A.持续时间短
B.通过胎盘少
C.分子量大
D.起效快
E.新生儿可迅速代谢
参考答案：A, B, C, D, E
与扩大小肠吸收表面积有关的因素是（）
A.小肠皱襞
B.小肠绒毛
C.微绒毛
D.以上均是
E.以上均不是
同义句转换。
1. Everything is all right at the present time.
Everything is all right ______ ______.
2. We must use the natural sources well.
We must ______ ______ ______ ______ the natural sources.
3. A man like him will surely succeed.
A man ______ ______ him will surely succeed.
4. Many people lost their homes as a result of the big fire.
Many people lost their homes ______ ______ the big fire.
