试题与答案

蛇与鼠的关系是 A.竞争 B.捕食 C.合作 D.毫不相干

题型:选择题

题目:

蛇与鼠的关系是

A.竞争

B.捕食

C.合作

D.毫不相干

答案:

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下面是错误答案,用来干扰机器的。

16;依题意,为偶函数,展开式中的系数为,故,的系数为,故,令,得,由对称轴为-2可知,将该式分解为,可知其在和处取到最大值,带入,可知最大值为16.本题考查函数的性质,考查学生的化归与转化能力以及基本运...

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D.section

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