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【判断题】
丁烷和丁醚都不溶于水,丁醚溶于浓 HCl但丁烷不溶 ,可以将两者区别开来。A.
正确
B.
错误
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举一反三
【单选题】Why couldn't George start his car again?
A.
The car's engine was at the back.
B.
He knew too little about his car.
C.
Something went wrong with his car.
【简答题】To start a car moving, work must be done on it.
【单选题】News report 3
A.
It intends to keep its traditional diet.
B.
It wants to expand its own farming.
C.
It is afraid of the spread of disease.
D.
It is worried about unfair competition
【单选题】Excel 2010中,如果要限制用户在某个单元格只能输入某些给定的选项,拒绝无效输入,可以通过设置( )来达成所愿。
A.
单元格格式
B.
条件格式
C.
数据有效性
D.
数据格式
【简答题】He got the car (start) ______ at last by asking everyone to push it.
【单选题】---Tom, is there __ wrong with the car? ---Yeah, the engine refuses to start.
A.
Anything
B.
One thing
C.
Nothing
D.
none
【简答题】News Report 3
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