保险代理是代理行为的一种，属于民事法律行为。保险代理任为的主体是（）。
A.保险人
B.投保人
C.被保险人
D.保险代理人
参考答案：D
一个圆柱形的玻璃杯可盛水1立方分米，我们就说玻璃杯容积是1升．______．
根据对话内容，完成对话中所缺单词，每空填一词。
A: Hi, Kate! Have you ever (1) _________ part in any social activities during summer holidays?
B: Yes, I have been a volunteer in a disabled children's home.
A: Did you spend the whole (2) _________ working there ?
B: Yes.
A: Have you ever told stories to the kids?
B: Yes, I have
A: Have you ever fed the disabled children?
B: No, I haven't. But I have (3) _________ their rooms.
A: What a (4) experience!
B: Yes, it was. Though I had no time to travel, I still felt very (5) .
