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【简答题】
质点运动方向( )与质点所受合力方向相同,某瞬时速度大,则该瞬时质点所受的作用力( )大。
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反馈参考答案：
举一反三
【简答题】设 a＞b，给出下列结论： ① ； ② ； ③ ； ④ 。其中正确结论的序号是 .
【简答题】Coketown was a town of red brick, or of brick that would have been red if the smoke and ashes had allowed it; but in fact it was a town of unnatural red and black like the painted face of savage（野人）. ...
【单选题】___ is well known is that Africa had contacts with India and the Red Sea civilizations from the earliest times．
A.
As
B.
It
C.
What
D.
That
【简答题】医用脱脂纱布属于第 () 类医疗器械。
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