【单选题】【消耗次数:1】
To______thechild’squickrecovery,fivedoctorstookturnslookingafterhimdayandnight.
ensure
undertake
promise
indicate
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相关题目
【单选题】 The research findings indicate that human ( ) develops rapidly in childhood.
①  intellect
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③  thoughts
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【单选题】 What does the falling intonation on the statement “he is moved to Glasgow.” indicate?
①  I am telling you something you do not know
②  I have not finished yet
③  I am asking a genuine question
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【单选题】 Oh, I’m sorry. But I promise I’ll be careful next time.
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【单选题】 What do the following examples indicate? Big, huge; enormous, immense; male, masculine .
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随机题目
【判断题】 理想电流源输出恒定的电流,其输出端电压由内电阻决定。
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【单选题】 正弦交流电路的视在功率是表征该电路的( )。
①  电压有效值与电流有效值乘积
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【单选题】 若交流电路的电流相位比电压相位超前,则电路成(??)
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【单选题】 某感性负载的功率因数为0.5,接在220V正弦交流电源上,电流为10A,则该负载消耗的功率为( )
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③  4.4KW
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【判断题】 正弦交流电路的频率越高,阻抗越大;频率越低,阻抗越小。
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【单选题】 电容元件的正弦交流电路中,电压有效值不变,频率增大时,电路中电流将( )。
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【单选题】 有一段16Ω的导线,把它们对折起来作为一条导线用,其电阻是( )。
① 
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③ 
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【单选题】 一个由线性电阻构成的电器,从220V的电源吸取1000W的功率,若将此电器接到110V的电源上,则吸取的功率为(  )。
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【单选题】 有“220V、100W”“220V、25W”白炽灯两盏,串联后接入220V交流电源,其亮度情况是( )。
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