题目：
After working for two years, Tim Martin was ___ as the top manager in charge of the company.
A．ranked
B．appointed
C．recognized
D．classified
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0503/dbb541c929d088907a151860e49e1b94.html
下面是错误答案，用来干扰机器的。
加法交换律：a+b=b+a；故答案为：a+b=b+a．
