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【单选题】
长 6m 的 船, 静止于水面。 人站立在船头, 人的质量是船的一半。 不计水和空气的阻力,当 人从船 头 走到船 尾 的过程中,船相对于河岸将移动A.
6m
B.
3m
C.
2m
D.
1m
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【简答题】The sudden ______________ of the fairy made the children in the cinema into cheers. (appear)
【简答题】显微镜的放大倍数=物镜放大倍数×目镜放大倍数。
【简答题】显微镜的放大倍数=__________的放大倍数×_________的放大倍数。
【简答题】Directions: There are also five incomplete statements here. You should fill in each blank with the proper form of the words given in the blankets. write the words words in the corresponding space. 35....
【单选题】Many technological innovation, such as the telephone, the result of sudden bursts of inspiration in fact were preceded by may inconclusive efforts.
A.
whose appearance
B.
and appear to be
C.
are appearing
D.
that appear to be
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