【单选题】【消耗次数:1】
电梯井口必须设防护栏杆或固定栅门,电梯井内应每隔()应设一道安全网。
一层
两层
三层
四层
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相关题目
【单选题】 电梯井口必须设防护栏杆或固定栅门;电梯井内应每隔两层并最多隔( )设一道安全网。
①  8m
②  9m
③  10m
④  12m
【单选题】 电梯井口必须设防护栏杆或固定栅门,电梯井内应每隔两层并最多隔( )m设一道安 全网。
①  8
②  9
③  10
④  12
【单选题】 电梯井内应每隔( )层不大于( )m设置一道安全平网。
①  3;15
②  4;15
③  2;10
④  3;10
【单选题】 电梯井应每间隔不大于( )m设置一道平网防护层。
①  5
②  7
③  9
④  10
【判断题】 电梯井内每隔2层且不大于15m应设置安全平网防护
①  正确
②  错误
【单选题】 电梯井口防护应设置固定栅门,栅门的高度为( )m。
①  1.2
②  1
③  1.5
④  1.8
【单选题】 电梯笼周围( )m范围,应设置防护栏杆。
①  1
②  1.5
③  2
④  2.5
【单选题】 施工电梯梯笼周围()范围,应设置防护栏杆。
①  1.8m
②  2.0m
③  2.5m
④  3.0m
【单选题】 垂直运输接料平台,除两侧设防护栏杆外,平台口还应设置( )或活动防护栏杆。
①  安全围栏
②  安全门
③  安全立网
④  竹笆
【单选题】 脚手板应铺设牢靠、严实,并用安全网双层兜底,施工层以下每隔( )m应用安全网封闭。
①  3;
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③  8;
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随机题目
【单选题】 __________ all our efforts to save the school, the authorities decided to close it.
①  As for
②  Besides
③  Except
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【单选题】 That was so serious a matter that I had no choice but __________ the police.
①  called in
②  calling in
③  call in
④  to call in
【单选题】 Well done. Congratulations on your success.
①  Thank you very much
②  Oh, no, no
③  No, I didn’t do very well
④  Sorry, I couldn’t any better
【单选题】 Good morning, sir. May I help you?
①  No, I don’t buy anything
②  No, I don’t need your help
③  Yes, I need some sugar
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【单选题】 I’d like to take you to the coffee house on the corner.
①  Thank you. You shouldn’t’ do that
②  Thanks, I’d like to go with you
③  No, you can’t say so
④  No, no, You can’t do that
【单选题】 He’s determined to finish the job __________ long it takes.
①  no matter
②  however
③  wherever
④  whatever
【单选题】 -- Could I speak to John Harris, please.
①  Oh, how are you
②  I’m John
③  I’m listening
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①  I don’t want to go
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③  I want to, but I haven’t got enough money
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【单选题】 Could you help me with my homework, please?
①  No, no way
②  No, I couldn’t
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【单选题】 Determined to __________ as if everything were normal, he responded with a kind of indifference.
①  carry on
②  account for
③  bring up
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