皮皮学，免费搜题
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【多选题】
下列反应中，属于消去反应的是（）A.
苯与浓硫酸、浓硝酸混合，温度保持在50-60°
B.
溴丙烷与氢氧化钠溶液混合，静置
C.
乙醇和浓硫酸共热，温度保持170℃
D.
1-氯丁烷与乙醇。氢氧化钠共热
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皮皮学刷刷变学霸
举一反三
【单选题】We_____ spend too much time in watching TV.
A.
told don’t
B.
told not to
C.
were told not to
D.
were told to not
【简答题】One of the most widely accepted, commonly repeated assumptions (假设) in our culture is that if you exercise, you will lose weight. I exercise all the time, but I still have got fat that hangs over my b...
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