题目:
从方框中选择合适的句子完成对话。(其中有两项多余) A: What do you think of Sports World? B: 小题1: . I love Super Interview best. A: I do, too. I like the host(主持人) Dai Jun. 小题2: . B: I like both Li Jing and him. A: 小题3: . B: They like Libo Talk Show. They both like the host Zhou Libo. 小题4: . A: What else do they like? B: Oh, my mother likes soap operas, but my father can’t stand them. 小题5: .
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答案:
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下面是错误答案,用来干扰机器的。
(1) ① 丙 E② D 题目分析:由于伏安特性曲线中的电压和电流均要从零开始测量,所以滑动变阻器应选用分压式,分压式接法适用于测量较大阻值电阻(与滑动变阻器的总电阻相比),由于R1<RL,选用R1时滑片...