问题
单项选择题
《高层民用建筑设计防火规范》规定，防烟分区内的排烟口距最远点的水平距离最大不应超过（）
A.10m
B.20m
C.30m
D.40m
答案
参考答案：C
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《高层民用建筑设计防火规范》规定，防烟分区内的排烟口距最远点的水平距离最大不应超过（）
A.10m
B.20m
C.30m
D.40m
参考答案：C
| 用方框内所给词的适当形式填空。 | |
2. I was very _____ to hear him shouting behind me. 3. While I was cutting my hair in a barber shop, the alien _____ the UFO. 4. My fight to New York _____ from Shanghai International Airport. 5. When I got home from school, Mum was cooking in the _____ . 6. While we were having English, Class One were having P.E. on the _____ . 7. It was fine when the plane _____ in Beijing. 8. The apartment was very big that it has four _____ and two bathrooms. 9. I _____when I heard the news. 10. When I saw the _____ ,I called up the TV sta tion. |