涵洞的构造，一般分为（）三大部分。
A、基础
B、盖板
C、洞身
D、洞口
参考答案：A, C, D
-Lily seems to be angry with me.
-I think so, too. You shouldn’t have made fun of her _____. [ ]
A. in turn
B. in reality
C. in public
D. in advance
月经的第25～28天，称为
A．月经期B．增生期C．分泌期D．月经前期E．月经周期
