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【单选题】
如图,轻轻将物体 m 移向自由状态的弹簧的顶端,弹簧的劲度系数为 k ,然后松手, m 下落,弹簧的最大压缩量 L 0 为( )A.
mg/(2 k )
B.
3 mg/ k
C.
mg/ k
D.
2mg/ k
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反馈参考答案：
举一反三
【单选题】Penny Bauer, Chief Financial Officer of Harrison Haulage, suspects irregularities in the payroll system and orders an inspection of ‘each and every payroll voucher issued since 1 January 2005’. Penny ...
A.
census of the payroll records
B.
statistic from the payroll records
C.
sample of the payroll records
D.
sorting of the payroll records
【判断题】Only if we shift our paradigms and refocus our parameters can we take the great advantage of the super information highway.
A.
正确
B.
错误
【单选题】Only if we shift our paradigms and refocus our parameters can we take the great advantage of the super information highway. ( )
A.
T
B.
F
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