题目

读一读,给下列单词归类。 minemy yours their his your herstheirs ours our her (1) 形容词性物主代词 (2) 名词性物主代词 (3) 形容词性物主代词、名词性物主代词 答案:my their your our her mine yours hers theirs ours his如下图中ABO可看成杠杆,O为支点,请在图中画出该杠杆的动力臂和所受阻力的示意图.
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