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【单选题】
对采用压力润滑的往复泵不能反转的原因是:A.
往复泵的吸排方向将相反，不能正常吸排
B.
装于泵轴自由端的齿轮泵也将反转，造成不能正常供油润滑
C.
往复泵的吸入压力将明显降低
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举一反三
【单选题】Which of the following statements is TRUE?____
A.
You won’t write a good composition until you like the topic.
B.
When Baker wrote the essay, he thought his teacher would like it.
C.
Mr. Fleagle had liked Baker’s compositions before.
D.
Baker succeeded in writing two compositions.
【单选题】Which of the following statements is TRUE?
A.
When Baker wrote the essay, he thought his teacher would like it.
B.
You will not write a good composition until you like the topic.
C.
Mr. Fleagle had liked Baker's compositions before.
D.
Baker succeeded in writing two compositions.
【简答题】软件程序系统结构的设计是以（）为基础的。以需求分析的结果为依据，从实现的角度进一步划分为（），并组成模块的（）。
【简答题】软件结构设计是以（）为基础，以需求分析的结果为依据，从实现的角度进一步划分（），并组成模块的（）。
【单选题】Which of the following statements is TRUE?
A.
You will not write a good composition until you like the topic.
B.
When Baker wrote the essay, he thought his teacher would like it.
C.
Mr. Fleagle had liked Baker's compositions before.
D.
Baker succeeded in writing two compositions.
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