试题与答案

Which of the following statements least ac

题型:单项选择题

题目:

Which of the following statements least accurately describes why firms can coordinate economic activity more efficiently than markets Firms can achieve:()

A. economies of scope.

B. diversification benefits.

C. economies of scale.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B解析: 本题考查二叉树的性质。叶子结点即度为0的结点,它总是比度为2的结点多一个,所以,具有60个叶子结点的二叉树有59个度为2的结点。总结点数等于个叶子结点加上59个度为2的结点再加上50个度为1...

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