阅读《季氏将伐颛臾》中的一段文字,回答下列问题: 季氏将伐颟臾。冉有、季路见于孔子曰:“季氏将有事于颛臾。”孔子曰:“求!无乃尔是过与?夫颛臾,昔者先王以为东蒙主,且在邦域之中矣。是社稷之臣也,何以伐为?”
解释这段文字中画线字的含义。 无乃: 是: 过: 以为: 是:
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下面说法正确的是()
A. 准确度表示对所作判断的把握程度
B. 绝对偏差,也叫变异系数,一般计算半分率
C. 置信度实际是指某事件出现的概率
fails to (7) theinitial sale,
A. produce
B. construct
C. build
D. make
Ms. Lewis plans to drive 900 miles to her vacation destination, driving an average of 50 miles per hour.How many miles per hour faster must she average,while driving, to reduce her total driving time by 3 hours?
A. 5
B. 8
C. 10
D. 15
E. 18