选择题:某中学对学生进行体质测试(简称体测), 随机抽取了100名学生的体测结果等级(“良好以下” 或“良好及以上” )进行统计, 并制成列联表如下:

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某中学对学生进行体质测试(简称体测), 随机抽取了100名学生的体测结果等级(“良好以下” 或“良好及以上” )进行统计, 并制成列联表如下:

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已知f(x)是定义在[0,1]上的函数, 那么“函数f(x)在[0,1]上的最大值为f(0)” 是“函数f(x)在[0,1]上单调递减” 的( )

已知f(x)是定义在[0,1]上的函数, 那么“函数f(x)在[0,1]上的最大值为f(0)” 是“函数f(x)在[0,1]上单调递减” 的( )

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—____________ we leave the library before 5 oclock? —No, you neednt. You can sta

—____________ we leave the library before 5 oclock? —No, you neednt. You can stay here until 5:30.

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—______ you please take the dog for work? —OK, but I have tofold the clothes fir

—______ you please take the dog for work? —OK, but I have tofold the clothes first.

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The land is________rain,because it hasnt rained for several months.

The land is________rain,because it hasnt rained for several months.

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—My father thinks using mobile phones is a waste of time. Besides, it’s ________

—My father thinks using mobile phones is a waste of time. Besides, it’s ________ my mind and body. —

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