发现或怀疑某批药品存在缺陷，应当考虑检查（），查明其是否受到影响。A.其他批次的药品

补全对话：用适当的句子补全对话，使对话意思完整，每空一句。

A: I have bought a CD-ROM, Daniel.

B: Oh, that's good. 1 ________________________?

A: It is called"Golden Dragon". It is a new computer game.

B: That sounds interesting. 2_______________________?

A: It was designed by Nick Bruce.

B: 3________________________?

A: I think it is set in ancient China.

B: 4________________________?

A: Of course. If you want to pass each level, you should answer four questions correctly. And the questions are

    more difficult when you get to the higher levels.

B: That sounds exciting. 5____________________________.

A: You should be quick, or it will be sold out.

出现心尖区全收缩期杂音并向左腋下传导的疾病是（）

A.二尖瓣狭窄

B.二尖瓣关闭不全

C.主动脉瓣狭窄

D.主动脉瓣关闭不全

E.肺动脉瓣狭窄

各种工业企业的火灾危险性是相同的。

根据生态因子的性质，通常可将生态因子归纳为气候因子、土壤因子、地形因子、______和人为因子。

静设备的性能主要由其功能来决定，其主要作用有（）。

A.均压

B.交换

C.贮运

D.反应

E.过滤