某医院的高层住院部大楼病房卫生间设有排风竖井,竖井的井壁上需开设检查门,所用检查门应为下列哪一项
A.普通密闭门 B.甲级防火门C.乙级防火门 D.丙级防火门
参考答案:D
根据句意,用所给单词的适当形式填空。
1. What should we do to help the ______ (home) people after the earthquake?
2. We do lots of outdoor ______ (active) when spring comes.
3. By the time I got outside, the school bus ______ (leave).
4. Tim was seen ______ (get) out of the subway at the station on Centre Street.
5. I've bought a present for my father's ______ (forty) birthday.
在装油完毕后,应该注意下列()事项。
A.装油速度
B.燃油数量
C.装油的先后顺序
D.燃油的规格