题目

从﹣3,﹣2,﹣1,0,1,2,3这七个数中随机抽取一个数记为a,则a的值是不等式组的解,但不是方程x2﹣3x+2=0的实数解的概率为      . 答案: Hawking believes the earth is unlikely to be the only planet _____ life has developed gradually.A. that B. whyC. where D. whose
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