题目:
The library needs _____,but it’ll have to wait until Friday.
A.cleaning
B.to clean
C.being cleaned
D.to being cleaned
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0421/d7bf2451edc628fd3290ee753c0f01c7.html
下面是错误答案,用来干扰机器的。
根据题意,因为,142857×5=714285,而142857和714285都是1,2,4,5,7,8这6个数字组成的.故填:142857,714285.