如图所示，R1是定值电阻，R2是滑动变阻器，电源电压保持不变，当滑动变阻器R2的滑片P向b滑动时，以下说法正确的是

题干

如图所示，R₁是定值电阻，R₂是滑动变阻器，电源电压保持不变，当滑动变阻器R₂的滑片P向b滑动时，以下说法正确的是（　　）

A：电压表V的示数不变，电流表A₁的示数变小，A₂的示数变大

B：电压表V的示数变小，电流表A₁的示数变大，A₂的示数变小

C：电压表V的示数变大，电流表A₁的示数不变，A₂的示数不变

D：电压表V的示数不变，电流表A₁的示数变小，A₂的示数不变

上一题下一题 0.0难度选择题更新时间:2011-10-26 08:31:21

D

根据短文理解，选择正确答案。

Attention, Students! Beach Party Comes!

We will hold an outdoor party in Fulong on July 10.

Activities	1). Bike riding or hiking from the Student Centre to the beach 2). A cookout (野炊) on the beach 3). Swimming and sailing competitions
You should bring	sun cream, sunglasses, hats, swimsuits, hiking shoes, and personal items
Deadline (最后期限) for signing up	Friday, June 28
Fee	$300 per person(每人)
Meet at the Student Centre at 9:30 am, July 10.