题目

Your article is too long. You must ___to about 3, 000 words.    A. cut it off     B. cut it up     C. cut it down     D. cut it out 答案:C 设不等式组,表示平面区域为D,在区域D内随机取一个点,则此点到坐标原点的距离大于2的概率是 [  ] A. B. C. D.
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