题干

打点计时器是物理实验中用来记录物体运动情况的仪器。小明为了观察一个小木球下落的运动情况,他将小球上端连接一条纸带,纸带穿过打点计时器(如图所示),让小球自由下落,打出的纸带由A到E,如图所示,关于小球运动状态和受力情况,下列说法正确的是(  )

A:AE段小球是匀速运动,球和纸带的重力等于向上的阻力

B:AC段小球是减速运动,球和纸带的重力小于向上的阻力

C:CE段小球是匀速运动,球和纸带的重力等于向上的阻力

D:CE段小球是匀速运动,球和纸带的重力小于向上的阻力

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C

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    An "apple polisher" is one who gives gifts to win friendship or special treatment.It is not exactly a bribe(贿赂), but is close to it.

    All sorts of people are apple polishers,including politicians and people in high offices—just about everybody. Oliver Cromwell,the great English leader,offered many gifts to win the support of George Fox and his party,but failed.

    There are other phrases meaning the same thing as "apple-polishing"—"soft-soaping" or "butter-up".A gift is just one way to "soft-soap" somebody,or to "butter him up".Another that is just as effective is flattery,giving someone high praise—telling him how good he looks,or how well he speaks,or how talented and wise he is.

    Endless are the ways of flattery.Who does not love or hear it?Only an unusual man can resist the thrill of being told how wonderful he is.In truth,flattery is good medicine for most of us,who gets so little of it.

    We need it to be more sure of ourselves.It cannot hurt unless we get carried away by it.But we just lap it up for its food value and nourishment,as a cat laps up milk,then we can still remain true to ourselves.

    Sometimes,however,flattery will get you nothing from one who has had too much of it.A good example is the famous 12th century legend of King Canute of Denmark and England.The king got tired of listening to the endless sickening flattery of his courtiers(朝臣).They over-praised him to the skies,as a man of limitless power.

    He decided to teach them a lesson.He took them to the seashore and sat down.Then he ordered the waves to stop coming in.The tide was too busy to listen to him.The king was satisfied.This might show his followers how weak his power was and how empty their flattery.