单选题:请根据下面短文回答第题。Why did the boss send Mr. Black to China on busi 题目分类:公共英语一级 题目类型:单选题 查看权限:VIP 题目内容: 请根据下面短文回答第题。Why did the boss send Mr. Black to China on business? 参考答案: 答案解析: