对组合加工件、配合副、平衡件拆卸时不能拆乱，应采取相应的特殊措施。
参考答案：对
工作笼冲顶的原因？
According to a recent US survey, children spend up t0 25 hours a week TV. [ ]
A. to watch
B. to watching
C. watching
D. watch
