支持中央传动主动锥齿轮的圆锥滚子轴承预紧度的调整应在齿轮啮合调整之后进行。
参考答案：错
—I think Jerry will pass the exam this time. —________. He has been studying hard this year.
A．I don’t agree
B．Yes, that’s all right
C．No, he can’t
D．I think so
某人每月投资1万元，报酬率为6%，10年后累计( )元钱。
A．年金终值为1438793.47
B．年金终值为1538793.47
C．年金终值为1638793.47
D．年金终值为1738793.47
