【单选题】【消耗次数:1】
They are not only teachers __________ our friends
but for
but also
however
whoever
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相关题目
【单选题】 Not only ______ our money, but we were also in danger of losing our lives.
①  we lost
②  lost we
③  we did lose
④  did we lose
【单选题】 Not only the society but also the people in it ______.
①  has changed
②  have changed
③  have been changed
④  has been changed
【单选题】 Our teachers are very nice. What about __________ ?
①  yours
②  your
【单选题】 Not only the teacher but also the students _______ smiling.
①  is
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③  was
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①  blasting
②  banging
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①  正确
②  错误
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①  contribute
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①  participates
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随机题目
【单选题】 空心阴极灯的主要操作参数是
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①  77%,0.111
②  58%,0.236
③  30%,0.523
④  60%,0.222
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①  分子吸收
②  背景吸收
③  光散射
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【单选题】 下列操作中,不正确的是
①  拿比色皿时用手捏住比色皿的毛面,切勿触及透光面
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③  在测定一系列溶液的吸光度时,按从稀到浓的顺序进行以减小误差
④  被测液要倒满比色皿,以保证光路完全通过溶液
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【单选题】 人眼能感觉到的光称为可见光,其波长范围是
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②  200nm~400nm
③  200nm~1000nm
④  400nm~1000nm
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①  0.76μm~1000μm
②  10nm~760nm
③  200μm~800μm
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③  分子
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【单选题】 对于热塑性聚合物,可将样品放在模具中加热至软化点以上或熔融后再加压力做热压成膜(如聚乙烯薄膜),此法称为( )
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①  0.01mg/ml
②  0.1mg/ml
③  0.02mg/ml
④  0.2mg/ml