在行政诉讼中对具体行政行为的合法性负有举证责任的是( )。A．原告 B．被告 C．

我国肾综合征出血热的主要传染源是（）

A.东方田鼠

B.小家鼠

C.黑家鼠

D.小白鼠

E.黑线姬鼠

根据对话内容，从对话后的选项中选出能填在空白处的最佳选项。选项中有两项为多余选项。(AB="E," AC="F," AD=G)

—When is your vocation going to start?

—I'll be leaving on the fifth of August

—   61    How many weeks are you going to be taking?

—I'm taking two weeks now, but l want to save the other week and take it sometime during winter．

—That sounds good．62

—To the beach．

—Have you made your hotel reservation yet?

— 63 I'll be staying with friends．

—You're lucky．    64   

—What about you? When are you planning to take your vocation?

—_  65    I should be thinking about it, I guess．

A．Oh, I don't need to do that．

B．No, not really !

C．That's only a few days from now

D．It’s hard to find a hotel in August．E． That depends．

F． I don't know．

G． Where are you going?

下列解决青藏高原牧区能源问题的最合理措施是(    )

A．樵采天然植被

B．开发利用太阳能

C．大力发展薪炭林

D．加大煤炭的开采

在人寿保险经营过程中，险种初期现金价值与退保率之间的关系是

A.险种初期现金价值越高，退保率越高

B.险种初期现金价值越高，退保率越低

C.险种初期现金价值越低，退保率越高

D.险种初期现金价值与退保率无关

信用担保机构所有对外担保余额不得超过其实收资本（）倍。

A、1

B、2

C、3

D、5