【单选题】【消耗次数：1】
风口垂直安装，垂直度的偏差不应大于5/1000。
①
正确
②
错误
参考答案：
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相关题目
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塔式起重机安装附着框架和附着杆件时，应用经纬仪测量塔身垂直度，并应利用附着杆件进行调整，在最高锚固点以下垂直度允许偏差为（ ）。
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1/1000
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2/1000
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现浇钢筋混凝土结构电梯井井筒全高(H)的垂直度允许偏差为（ ）mm。
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H/1000或＜30
②
H/1000且＜30
③
H/1000或≤30
④
H/1000且≤30
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Small sailboats can eaily turn over in the water [] they are not managed carefully.
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though
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before
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until
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if
【单选题】
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Afer finishing her composition, she took up the translation exercise.
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Afer finishing her composition, the translation exercise was taken up.
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Which sentence is correct?
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Hurrying to the classroom, no one was there.
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Hurrying to the classroom, she saw nobody there.
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Ill visit you whenever I will get the chance. Identify the mistake in the sentence.
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visit
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whenever
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She happily deposits the money she has earned teaching English in her savings account. Find any misplaced modifier in the sentence
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happily
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she has earned
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in her savings account