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【简答题】
液压与气压传动介质成本都很高。
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举一反三
【单选题】Merge the following two short sentences into one new sentence.
A.
Split
B.
Combine
C.
Break
D.
Divide
【简答题】根据所学课文内容填空 At first my new 1 were difficult to tolerate. The air seemed thin, as 2 its combination of gases had little oxygen left. 3 by a lack of fresh air, my head ached. Wang ping handed a mask to ...
【单选题】In our country the cold weather in the north_____ sharply _____the hot weather in the south.
A.
combines；with
B.
relates；to
C.
compares；with
D.
contrasts；with
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