正常停止运行应注意以下事项()
A、确定正确的停运方案
B、停运中降温、降压速度的控制
C、清除剩余物料
D、杜绝火源
参考答案:A, B, C, D
Last night Judy worked _____ late _____ she didn't catch the first bus this morning. [ ]
A. as; as
B. as; that
C. so; that
D. so; unless
Lb3C4067地下连续墙施工导墙的作用是什么?