关于隧道建筑限界,下列哪种说法是正确的()A、隧道建筑限界是指隧道衬砌内轮廓线所包围

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问题:

关于隧道建筑限界,下列哪种说法是正确的()

A、隧道建筑限界是指隧道衬砌内轮廓线所包围的空间

B、隧道本身的通风、照明设备可以安装在建筑限界内

C、隧道本身的通风、照明、安全、监控及内装等附属设备均不得侵入建筑限界内

D、隧道建筑限界不包括检修道

考点:隧道工程隧道工程题库
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Old John went to see a doctor. The doctor examined and said, “ Medicine can’t help you. You must have a good rest. Go to a quiet place for a month, go to bed early, drink some milk, walk a lot and smoke one cigar (雪茄) a day.”

“Thank you very much,” said old John, “ I will do everything you say.”

A month later old John came to the doctor again. “ Well, I’m glad to see you. You look much younger.” Said the doctor.

“Oh , doctor,” said old John, “I feel quite well now. I had a good rest. I went to bed early, I drank a lot of milk, and I walks a lot. Your advice certainly helped me. But you asked me to smoke one cigar a day, and the one cigar a day nearly killed (杀) me at first. It’s no joke to start smoking at my age.

小题1:The doctor _________________________________.

A.asked him to take some medicine

B.asked him not to take any medicine

C.didn’t say any word about medicine

D.gave him some medicine小题2:Old John __________________ after a month.

A.didn’t get well

B.got well

C.was old

D.got bad小题3:Which one is true?

A.Old John smoked before

B.Old John smoked less than(比) before

C.Old John didn’t smoke before

D.Old John didn’t smoke a cigar a day小题4:When Old John was ill, he looked______________.

A.young

B.old

C.younger

D.older小题5:The best title(题目) of this passage should be____________.

A.Old John

B.Old John is ill

C.The Doctor’s Advice

D.The Doctor

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在玻璃管两端同时放入蘸有浓氨水和浓盐酸的棉球,几秒钟后玻璃管内有一团白烟(如图所示),白烟是氨气与氯化氢反应生成氯化铵(NH3+HCl==NH4Cl)。下列说法正确的是

[ ]

A.氨分子和氯化氢分子在不断运动

B.氨分子和氯化氢分子运动的速率相等

C.氯化铵微粒不运动

D.该反应说明化学变化中分子不可再分

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