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【多选题】
还原反应过程的安全措施有（ ）。A.
操作过程中一定要严格控制温度、压力、流量等各种反应参数和反应条件
B.
注意催化剂的正确使用和处置
C.
注意还原剂的正确使用和处置
D.
对设备和管道的选材要符合要求，并定期检测，以防止因氢腐蚀造成事故
E.
车间内的电气设备必须符合防爆要求，厂房通风要好，且应采用轻质屋顶，设置天窗或风帽，使氢气易于逸出，尾气排放管要屋脊5m以上并设阻火器
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【简答题】What do critics on the right say about the proposed point system?
【单选题】听力原文：W: I heard that the mayor is closing the cheese factory. M: Yes, but it is only temporary. W: Oh, I'm surprised. I thought it was going to shut down for good. Q: Why was the woman surprised? (5)
A.
She had lost her job.
B.
She didn't know the mayor.
C.
She was mistaken.
【判断题】Woolworth Building, designed by Cass Gilbert, is referred to by critics as 'the Cathedral of Finance'.()
A.
正确
B.
错误
【判断题】If you can start your speech in a way that gets the audience to ask questions, it's a good start.
A.
正确
B.
错误
【简答题】According to critics, it will cost much more spending in our pursuit of ______.
【简答题】Critics should be as objective as possible in their_ (yze) of literary works.
【单选题】Nick, it's good for you to read some books ________ China before you start your trip there. [ ]
A.
in
B.
for
C.
of
D.
on
【简答题】只与一个性伴发生性行为可以减少艾滋病的传播吗?( )
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