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. 29.力的作用线既不汇交于一点,又不互相平行的力系称()力系

单选题
2021-09-02 00:21
A、空间汇交
B、汇交
C、平行
D、一般
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正确答案
D

试题解析

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力的作用线既不汇交于一点,又不互相平行的力系称( )力系。
. 29.力的作用线既不汇交于一点,又不互相平行的力系称()力系
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