当前位置：在线题库搜索＞[单选题]普通平键联接工作时，键的主要失效形式为 _________。的答案是什么？
问题：
[单选题]普通平键联接工作时，键的主要失效形式为 _________。
A、键受剪切破坏
B、键侧面受挤压破坏
C、剪切与挤压同时产生
D、磨损和键被剪断
参考答案：
B
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