Which season is your favourite season, spring, summer, autumn or winter? I like autumn best. Autumn is the time for harvest(收获). In autumn I can eat many different fruits：apples, pears, grapes and so on. I can also eat fresh vegetables. Autumn is cool. I feel comfortable(舒适的). I am happy to see the leaves turn red and yellow.

如图所示的电路中，电源电动势为E，内阻不能忽略．闭合电键S，电灯正常发光．再将滑动变阻器的滑片P稍向左移动一段距离，下列说法正确的是（   ）

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