题目内容

When introducing the colleague to the client, you should introduce his name, position and the company he is representing.

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

If your client is a gentleman, you don't need to offer to help him with the luggage.

A. 对
B. 错

红外光谱是外层电子跃迁产生的

A. 对
B. 错

红外吸收峰的数目一般比理论振动数目少，原因之一是有些振动是非红外活性的

A. 对
B. 错

化学键两端的原子电负性差越大，其伸缩振动引起的红外吸收越强

A. 对
B. 错