大学MOOC 2020春工程力学(全英文)(刘广彦)(北京理工大学)1458655163 最新慕课完整章节测试答案
01 Reductions of force systems
Tests for week 1
1、单选题:
As shown in the parallelogram, all forces are at point A. In which figure FR can be considered as the resultant of F1 and F2?
选项:
A: ![]()
B: ![]()
C: ![]()
D: ![]()
答案: 【
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