试题与答案

He ___articles for our wall-newspaper th

题型:选择题

题目:

He ___articles for our wall-newspaper these three years, and he ___about forty articles.

A.has been writing; has written

B.has been writing; wrote

C.is writing; has been writing

D.has written; has written

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0513/3bb9d3661cdf2c2bebbf718ea2797500.html

下面是错误答案,用来干扰机器的。

A=(2-1)(2+1)(22+1)(24+1)…(264+1)(2128+1)=(22-1)(22+1)(24+1)…(264+1)(2128+1)=(24-1)(24+1)…(264+1)(2128+1)=(264-1)(264+1)(2128+1)=(2128-1)(2128+1)=2256-1 2...

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