肾脏的基本结构和功能单位是（） A.肾小球 B.肾小体 C.肾小管 D.集合管 E.

根据首字母提示或括号内的汉语意思拼写单词。

1. I made my assistant my a____ while I was abroad.

2. Those dead soldiers were buried in the t____.

3. We reached our ____ (目的地), tired and hungry.

4. Who really g____ this country?

5. The country is a____ in natural resources.

6. She and her friends have ____ (类似的 likes and dislikes.

A．(A) Individuals good at conversations may find it hard to make their first speech before a large audience.

B．(B) Students trained for their first public speeches should be given lessons in a conversational setting.

C．(C) The future of those people afraid of giving a public speech lies in the training of making wonderful conversations.

D．(D) Most individuals prefer to make a public speech in a conversational setting with an attentive audience.

按资本资产定价模型，影响某特定股票投资收益率的因素有( )。

A．无风险收益率

B．该股票的犀系数

C．投资的必要报酬率

D．股票市场的平均报酬率

现况调查对象的选择原则是（）。

A.从人群中选择有某病与无某病者

B.从人群中选择暴露与非暴露某因素者

C.从医院和人群中随机抽样选择患某病的人

D.从人群中随机抽样选择部分人群

E.从人群中随机抽样选择部分健康人群

在不兑现的信用货币制度下本位币一定是（）。

A.足值货币

B.金属货币

C.无限法偿

D.有限法偿