A．It is a serious threat to its competitors.B．It is not powerful enough to affect the
A. It is a serious threat to its competitors.
B. It is not powerful enough to affect the world market.
C. The ears' quality is good enough to have their own branding.
D. None of the Chinese cars meet the standard in the US.
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简单算数平均数是加权算数平均数的—个特例，是权数相等条件下的加权算数坪均数。()
A. 正确
B. 错误
按照统计分组要具备完整性的原则，对婚姻状况进行调查时，应当将总体划分为未婚和已婚两个组。 ()
A. 正确
B. 错误
将某地区人均粮食产量按时间先后顺序排列，此种时间数列属于绝对数时间数列 ()
A. 正确
B. 错误
2002年,中国奥委会正式向国际奥委会推荐市作为申办年冬奥会的候选城市()
A. 哈尔滨 2008
B. 齐齐哈尔 2008
C. 哈尔滨 2010
D. 齐齐哈尔 2010
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