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【简答题】
分子中含有1个 键的不饱和烃,称为烯烃。烯烃的官能团是 ,烯烃的组成通式为 。
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皮皮学刷刷变学霸
举一反三
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【简答题】I’ll remember the first carnival（狂欢节）. 小题1:. My parents came from Jamaica and they helped to start carnival. We had very little money, but we made costumers from old bits of material and feathers, and...
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【简答题】请根据以下原始凭证编制会计分录,并拍照上传答案。
【单选题】According to the text, the mayor of London, Ken Livingstone seems to be very supportive of the congestion charging scheme because of
A.
his interest in traffic.
B.
the weak response of politicians.
C.
his political motives.
D.
the complexity of the problem.
【单选题】Babies start to get ______ around the age of eight months.
A.
mobilize
B.
mobile
C.
mobility
D.
mobilization
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【简答题】请根据以下原始凭证编制会计分录,并拍照上传答案。
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