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【单选题】
能实现轴上零件的固定的是（）A.
轴套
B.
圆螺纹
C.
过盈配合
D.
轴肩或轴环
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举一反三
【单选题】In all, 57 such trains are expected to be in ____ commercial operation by _____ end of 2009.A．t
A.
112. In all, 57 such trains are expected to be in ____ commercial operation by _____ end of 2009. A．the; the
B.
a; a
C.
/; the
D.
a; the
【简答题】You ’ d better meet Mike outside the teaching building. 2. Whether the will be played depends on the weather. 3. How about taking up some of your time to talk about our plan ? 4. Why not sign up ...
【简答题】从方框中选出最佳答案完成对话。 A. The weather will be fine. B. They are very nice, really? C. Why not? D. It will be very interesting. E. You may always sleep on it. Friend: Let's go to a baseball match tomorrow. 1 ...
【单选题】The classical gold standard
A.
Existed from early 1800's to early 1900's
B.
Did not allow for imports and exports of gold
C.
Led to the outflow of gold from surplus nations
D.
Led to the inflow of gold to deficit nations
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