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【简答题】
其他条件不变 , 若接触力增大一倍 , 接触应力增大多少 ?
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反馈参考答案：
举一反三
【单选题】If the train is due in five minutes, is it ______ ?
A.
scheduled to arrive
B.
ready to leave
C.
broken down
【简答题】The train is due _____ 12:15 p.m.
【简答题】The train is seriously delayed due to the heavy snow.
【单选题】—The train is due to leave at 7：50. —________ we fail to arrive there in time? —I'm afraid you'd better go in a hurry.
A.
What if
B.
As if
C.
Even if
D.
Only if
【简答题】宫缩乏力引起的产程异常包括:()、()、()、()、()、()。
【简答题】The train is due to arrive at 9 o"clock, but it has been delayed for one hour.
【单选题】If the train is due in five minutes, is it ______ ?
A.
ready to leave
B.
schedule to arrive
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