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[单选] 质点做初速度为ν0的匀加速直线运动,它的位移为s时的速度为ν1,则它位移为2s时的速度为()
A.<img src="//wximg.233.com/attached/image/20120928/20120928155310771077.jpg" alt="" /> B.<img src="//wximg.233.com/attached/image/20120928/20120928155373967396.jpg" alt="" /> C.<img src="//wximg.233.com/attached/image/20120928/2012092815530511511.jpg" alt="" /> D.<img src="//wximg.233.com/attached/image/20120928/20120928155344254425.jpg" alt="" />
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