女子胞的功能与下述哪脏关系较不密切（）
A.肝
B.心
C.脾
D.肺
E.肾
参考答案：D
It usually takes him two hours ________ his homework every day. [ ]
A. do
B. does
C. to do
D. doing
图示区域内年降水量的空间分布规律是（ ）
A．由东向西逐渐减少
B．由西南向东北逐渐减少
C．由西向东逐渐减少
D．由东南向西北逐渐减少
