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【单选题】
一质点沿直线运动,加速度方向与速度方向相同。在加速度数值逐渐变小至0的过程中,关于质点的运动,下列说法正确的是A.
速度先增大后减小
B.
速度先减小后增大
C.
速度始终减小
D.
速度始终增大
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【单选题】Passage Four(36~40) One of Britain’s bravest women told yesterday how she helped to catch suspected (可疑的) police killer David Bieber—and was thanked with flowers by the police. It was also said that s...
A.
get
B.
be paid
C.
ask for
D.
own
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