【单选题】【消耗次数：1】
I don’t think you can work out the maths problem ___ her help.
①
since
②
unless
③
with
④
without
参考答案：
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19._____ all this work and so little sleep at night, I don’t think I can go on much longer.
①
What about
②
What if
③
What with
④
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Don’t hesitate ______ for help if you have any problem meeting the schedule.
①
to ask
②
asked
③
asking
④
to be asked
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Of course
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④
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①
No, no. I can take it myself
②
Thank you
③
Sorry, you can’t
④
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【单选题】
I don’t think you’ll be able to understand this formula（公式）___ you finish school.
①
as if
②
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③
even
④
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【单选题】
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①
I have no idea
②
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③
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④
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①
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②
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③
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④
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①
relaxed
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③
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①
?must; can; must; his
②
?may; can; must; him
③
?can; must; can; him
④
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随机题目
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附着升降脚手架各组成部分应按其结构形式、工作状态和受力情况，分别确定在以下三种不同状态下的计算简图，并按最不利情况进行计算和验算。( )
①
安装、使用、升降
②
使用、升降、坠落
③
安装、使用、坠落
④
安装、升降、坠落
【单选题】
附着升降脚手架使用过程中严禁进行下列作业，其中不正确的是：( )
①
任意拆除结构件或松动连接件
②
拆除或移动安全防护装置
③
起吊物料与架体保持距离
④
利用架体支顶模板