题目内容

人际沟通的基本要素有哪些？

查看答案

搜索结果不匹配？点我反馈

更多问题

Fill in the blank with the appropriate form of the verb.1. He was low-spirited and even considered (go) away.

1. The goods _____________ when we arrived at the airport.

A. were just unloading
B. had just been unloading
C. had just unloaded
D. were just being unloaded

下列药物中可用重氮化-偶合反应及三氯化铁反应进行鉴别的是（）

A. 阿司匹林
B. 对氨基水杨酸钠
C. 青霉素
D. 盐酸普鲁卡因
E. 对乙酰氨基酚

《中国药典》(2015年版)中鉴别()药物利用了芳香第一胺类反应。

A. 苯甲酸
B. 水杨酸
C. 阿司匹林
D. 对氨基水杨酸钠
E. 泛影酸