新招入矿的从业人员每年接受再培训的时间不得少于24学时。
参考答案：错
They are ____Nanjing now. [ ]
A. on them way to
B. on their way for
C. on their way to
D. on them way for
如图14-4-2所示结构的超静定次数为（）。
A．10
B．15
C．25
D．35
