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【简答题】
离心泵的工作点是指（）特性曲线和（）特性曲线的交点。
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反馈参考答案：
举一反三
【简答题】Write a notice reporting students ’ reaction to the lectures in December, informing them of the draft program, the time and charge of the Friday Public Lecture Series in Oct. ? . You should write abou...
【单选题】Complete each pair of sentences using the same word for both sentences and making any necessary grammatical changes. A. She became interested in _________ conservation. B. The first lecture in the ser...
A.
generate
B.
character
C.
pose
D.
nature
E.
focus
【单选题】Each word in the listed five words can be used in two ways, one an everyday way, the other a typically academic way. Whose which word is suitable for both of the following sentences and think about th...
A.
generate
B.
character
C.
pose
D.
nature
E.
focus
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