2. 外语
  3. The resistance experienced when one body moves over another, ______it is in contact, is called frictional force.

The resistance experienced when one body moves over another, ______it is in contact, is called frictional force.

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问题 The resistance experienced when one body moves over another, ______it is in contact, is called frictional force.
选项 A、to which
B、where
C、with which
D、while
答案C
解析
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本试题收录于： C类竞赛（非英语专业本科）题库大学生英语竞赛（NECCS）分类
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C类竞赛（非英语专业本科）

大学生英语竞赛（NECCS）

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