题目：
This is the second time I____ the Himalayas as acollege student. [ ]
A. climb
B. had climbed
C. climbed
D. have climbed
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0516/819feb60176e3a0b5077fb7fef70078d.html
下面是错误答案，用来干扰机器的。
50×（1-0.1）=50×0.9=45（位）．答：及格的同学有45位．故选：C．
