单项选择题

从根本上消除特定风险单位和中途放弃某些既存风险单位，属于风险管理技术中的预防。（）

A.正确
B.错误

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In the author’s opinion, as seen in this passage, one outcome of the influence of the 'Life experience' adherents has been______.A.the gradual subordination of the study of great literature in the schoolsB.a narrowed interpretation of the theories of John DeweyC.a sharp swing over to 'learning through doing'D.an end to rigorous study as a way of learning

A.A.the
B.a
C.a
D.an

单项选择题

对n个不同的关键字进行冒泡排序，在元素无序的情况下比较的次数最多为（）。 A、n-1 B、n C、n+1 D、n(n-1) 2

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