题目内容
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[主观题]
Oppenauer氧化反应常用的氧化剂为（），催化剂为（）。
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A.其氧化剂可为环己酮
B.其催化剂为异丙醇铝
C.其可逆反应为Meerwein-Ponndorf 还原
D.不需要无水条件下操作
更多“Oppenauer氧化反应常用的氧化剂为（），催化剂为（）。”相关的问题
第6题
According to the conversation, an ethical shopper should
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A. consider the worth of something to be bought.
B. ask for others' advice before buying things.
C. postpone buying things whenever possible.
D. search for things that are less costly.
第7题
A supermarket usually has（ ）
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A．lots of rooms for shoppers to sit in
B．lots of rest rooms for shoppers to use
C．ample space for shoppers to move round
D．lots of rooms where new varieties of goods are on display
第8题
听力原文：M: How did your company do from July to September?
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W: The sales dropped during July but increased steadily from August to September.
Which opinion do you think corresponds to the woman's reply?
A．There were two months when the sales dropped.
B．There were two months when the sales increased.
C．There was one month when the sales increased.
D．There were three months when the sales increased.
第9题
What is the main message of the news item?
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A．London attracts shoppers from all over the world.
B．Most people in Nigeria live in poverty.
C．Wealthier Nigerians become a big spender.
D．People from the Middle East are the most wealthy.
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