离心式压缩机的构件组成中用来带动叶片旋转的是()
A.轮毂
B.轮盘
C.轮盖
D.轴承
参考答案:B
分析职业发展可能性的原则
He was always finding () with his daughter’s friends.
A. blame
B. error
C. mistake
D. fault