问题
选择题
如图所示,电源电压保持不变,当滑动变阻器滑片P向右滑动时电表示数的变化情况是

A. 电压表V 示数变小
B.电流表A1 示数变大
C. 电流表A2 示数变大
D. 电流表A1 示数变小
答案
答案:D
如图所示,电源电压保持不变,当滑动变阻器滑片P向右滑动时电表示数的变化情况是
A. 电压表V 示数变小
B.电流表A1 示数变大
C. 电流表A2 示数变大
D. 电流表A1 示数变小
答案:D
根据对话内容,从下面的方框中选出可以填入空白处的最佳选项, 使对话完整, 并在答题卡上将该项涂黑。选项中有一项多余。 Mum: David, what do your friends like to do? David: 小题1: I can take them to the park. Mum: 小题2:_____ David: My friends enjoy watching football matches. 小题3: Mum: Thirdly, I can bring food for you. 小题4: David: After the match, I want to eat some cakes. After that, we can dance to pop music. 小题5: The sixth thing I want to do is to open my presents!
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