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根据《公路隧道消防技术规程》，单向交通隧道纵向排烟系统及其风向、风速应符合下列规定（）

A.不应改变起火隧道内的排烟方向，排烟方向应与隧道交通流向相同

B.起火隧道起火点附近的风机应停止运行，安全疏散阶段的纵向排烟速度应予以控制

C.灭火救援阶段的纵向排烟速度不应大于火灾临界风速

D.火灾情况下，起火点下风方向横洞的防火卷帘或防火门应关闭设有防烟排烟设施的横洞，其气流方向应流向起火隧道

答案

参考答案：A, B, D

完形填空

IV.完形填空（共10小题，每小题2分，满分20分）

Tom and Fred were talking about the year 2050.“What will __21___ be like in the year 2050 ?” asked Tom . “I don’t know ,” said Fred . “What do you think ?” “Well , no one knows . But it is ___22___ to guess ,” said Tom . “In the year 2050 everybody will ___23___ a pocket computer.The computer will give people the __24___ to all their problems . We shall all have telephones in our pockets , ___25___ . And we’ll be able to talk to our friends all over the world . Perhaps we’ll be able to __26___ them at the same time . Machines will do ___27___ work , and people will have more ____28____ , perhaps they will work only two or three days a week . They will be able to fly to the moon by spaceship and spend their holidays there .” 

“I’m very ___29___ to hear that . I hope to fly to the moon . And I hope I’ll be able to live ___30___ ,” said Fred . “Won’t that be interesting ? Just like a fish .” 

21. A.our home         B.the traffic           C.a factory              D.the world

22. A.pleased           B.no use             C.interesting             D.unusual

23. A.carry             B.bring             C.give                  D.send

24. A.news             B.ways              C.things                D.answers

25. A.either           B.again               C.too                  D.also

26. A.call              B.see                C.look                 D.listen

27. A.more             B.many              C.lot                   D.every

28. A.work             B.duty               C.holidays              D.times

29. A.sorry             B.glad               C.sure                D.afraid

30. A.in the sea         B.on land           C.on the mountain       D.under the ground

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判断题

1993年9月13日，“巴以和平协议”签字仪式在美国白宫南草坪举行。
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