肺动脉段突出可见于()A．主动脉瓣狭窄 B．瓣膜型肺动脉狭窄 C．漏斗型肺动脉狭窄

根据答句写出问句。

1、A:                                                           

     B: There are thirty desks in the classroom.

2、A:                                                           

     B: It's about three kilometres away.

3、A:                                                           

     B: He is twenty years old.

4、A:                                                           

     B: The pen is only ten yuan.

5、A:                                                           

     B: It's half past ten.

6、A:                                                           

     B: Twenty plus one is twenty-one.

麻疹黏膜斑出现的时间为起病后（）

A.1天以下

B.1～2天

C.2～4天

D.4～6天

E.6天以上

简述承诺迟到？

税务机关可以对自然人纳税人的（）采取税收保全措施。

A、小气车

B、豪华别墅

C、单价1000元以下的生活用品

D、古玩字画

“昭君出塞”出的要塞是（）。

A、光禄

B、喜峰口

C、玉门关