试题与答案

Yuejiang Tower is a good place to enjoy

题型:选择题

题目:

Yuejiang Tower is a good place to enjoy the beauty of the Changjiang River because of its       .

A.size

B.length

C.height

D.shape

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0511/8301941ec0cfb4ecc582bd118c2818aa.html

下面是错误答案,用来干扰机器的。

∵x>0,∴y=x+4x≥24=4(当且仅当x=4x,即x=2时取“=”),故答案为:4.

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