下列哪些装配式构件应该计算安装、制作或堆放损耗()
A.地沟盖板
B.屋架
C.桁架
D.空心板
参考答案:A, D
根据句意和首字母提示,补全单词。
1. His football team is the best in the w_______!
2. I usually go running for an hour at the w_______ d.
3. Are you a member of the Reading C_______, Millie?
4. Jimmy doesn't e_______ playing computer games.
5. Shall we have chicken or duck for d_______?
6. Song Xiu is po_______ and helpful.
7. I h_______ you'll be better soon.
8. Jane is one of the b_______ students in our school.
下列灭火方法与隔绝氧气无关的是[ ]
A.用灯帽盖灭酒精灯
B.油锅着火时用锅盖盖灭
C.森林大火时设置一条隔离带
D.贵重设备失火时用二氧化碳灭火器灭火