用截面法求内力时，可以保留截开后构件的任意部分进行平衡计算
查看答案
线应变是构件中单位长度的变形量
A. 对
B. 错
切应变是变形后构件内任意两根微线段夹角角度的变化量
A. 对
B. 错
Short Conversation1[音频]
A. She should talk about the promotion with her boss.
B. She should keep shut unitl a better job is available.
C. She should quit her job to get a better one.
D. She should urge her boss to keep the promise.
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