用NA表示阿伏加德罗常数的值。下列叙述正确的是 A．0.1 mol Fe在0.1

 I _____ have a car.  [ ]

A. does              

B. don't            

C. am                 

D. am not

根据《民用建筑节能条例》，在正常使用条件下，保温工程最低保修期限为()年。

A.3 

B.4 

C.5 

D.6 

根据对话内容，在每个标有题号的空白处填入一个适当的句子，使对话完整，合乎情景。

----Excuse me, sir.

----Yes?

---- 1_______________________

----The post office? Oh, go straight and turn right at the crossing.

----Thank you. 2_______________________

----No, not too far, about a twenty-minute's walk.

----Is there a bus going there?

----Yes. there is.

----Thank you. By the way, 3_______________________

----Yes, just opposite the post office.

----Do you mean the bank is opposite the post office?

----Right.

----Can I have my money changed there?

---- 4_______________________

----On more question, is the bank near to the department store? The largest one, I mean.

----Yes. In fact it's quite close.

----I see. 5_______________________

----It's my pleasure.

在新的历史条件下，夺取中国特色社会主义新胜利，必须牢牢把握（）个基本要求。

A.六

B.七

C.八

D.九

战时防空的基本措施有哪些？