paraphrase: Our colleges inevitably graduate a number of such life forms, but it cannot be said that they went to college; rather the college went through them—without making contact. (para.9)
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参考答案:
举一反三
【简答题】电路如下图所示: (1)当 R =0时,电流 I 是( )A; (2)当 I =0时,电阻 R 是( )Ω; (3)当 R =∞时,电流 I 是( )A。