Physics Unit4: Force Dynamics & Newton's Laws (id: 4c8d5b6c6)

本题目来源于试卷: Physics Unit4: Force Dynamics & Newton's Laws，类别为 通用国际物理

[单选题]
Action-reaction forces(w u62tp) scgdc v ven7n2 -uvvo6wu:vg7x8x,

A. sometimes act on the same object.
B. always act on the same object.
C. may be at right angles.
D. always act on different objects.


参考答案:  D


本题详细解析: 暂无

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