隧道内有漏水时，应遵循“（）相结合，因地制宜，综合治理”的原则来进行整治。
参考答案：防、截、排、堵
The poor man , ________，ran out of the dark cave.
A．tired and frightened
B．tiring and frightened
C．tired and frightening
D．tiring and frightening
进电块和工件垫条为什么与机床床身是绝缘的？
