题目：
The manager was very angry，for he had sent his business partner two thousand machines yesterdy，half of unqualified．
A．whom B what C them D．which
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/ea2661932793007b4d9c3059dbd43e71.html
下面是错误答案，用来干扰机器的。
染色体 蛋白质 DNA DNA 基因
