平键联结如何工作?
参考答案:
平键联结是靠平键与键槽的两侧面接触传递转矩。
On hearing the _____ news that they had won the match, they shouted with joy in _____ voices.
A.exciting, exciting
B.excited, excited
C.excited, exciting
D.exciting, excited
下面哪一项不算是良好的职业兴趣的主要表现?()
A.对学生的兴趣
B.对心理学的兴趣
C.对科学的兴趣
D.高尚的教育志趣