简述脱氢反应主要有哪些副反应?

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问题:

简述脱氢反应主要有哪些副反应?

考点:苯乙烯装置操作工脱氢反应脱氢反应题库
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采用实物量法编制施工图预算时,对于企业管理费、利润、规费和税金的计算,可以采用与定额单价法相似的计算程序,而需要根据当时当地建筑市场供求情况予以确定的是()。

A.利率

B.费率

C.汇率

D.利润率

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在干旱、半干旱地区采取大水漫灌的灌溉方式,可能会导致土地盐渍化。

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动词填空  用括号内所给动词的适当形式填空。(本大题共8分,每小题1分)

小题1:The teacher told me I __________(not improve) my English greatly unless I tried my best.

小题2:Mr. Sun told us that seven kinds of colored light___________ (make) up sunlight.

小题3:I don’t know if they ___________(show) around the History Museum after they visit the Science Museum tomorrow.

小题4:Why can’t you just believe me? I ______________ (tell) you everything I know!

小题5:The reporter __________(interview) three people before he came here.

小题6:As soon as the curtain  _________ (rise), the audience screamed with joy.

小题7:When I arrived at the office, Mr. Green _____________just ___________(leave), so we had little time to chat.

小题8:How happy the students from different countries were ________(see) each other yesterday!

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金穗惠农通”工程的培训对象包括()。

A.客户经理

B.政府领导

C.服务点

D.农民

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锅炉事故处置要点?

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