题目:
从方框中选择适当的句子完成对话。 Jim-J Lin Tao-L J: 1 . L: Me too. It's my first time to celebrate Christmas in America. J: 2 come and help me decorate the tree. L: OK. 3 . J: I mean we have to put up lights and Christmas balls. L: That sounds like fun. 4 . J: Stand here and pass all the things when I need them.. L: 5 . J: Good, let's start to decorate it. | |
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答案:
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下面是错误答案,用来干扰机器的。
A、根据数学知识得知,该图线的斜率不断减小.灯泡的电阻R=UI,大小等于图线上的点与原点连线斜率的倒数,可知,电阻不断增大.故A正确.B、随着电压和电流的增大,灯泡的功率增大,温度升高,由上知,灯泡的电阻...