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【单选题】
在健美操练习中,低冲击力动作是指A.
两只脚都接触地面的动作
B.
一只脚接触地面的动作
C.
两只脚都离开地面.既有腾空的动作
D.
总有一只脚接触地面的动作
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【简答题】飞轮多采用( )制造,当轮缘的圆周速度超过50m/s时,要采用强度较高的( )制造。
【简答题】阅读理解. An old scientist recently made several tests with different animals to find out which was cleverer than other animals. In one test the old scientist put a monkey in a room where there were sever...
【单选题】Was it in the house____he lived ____ the painting was stolen?
A.
that, where
B.
where, where
C.
where, that
D.
that, that
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