题目内容

苦杏仁中止咳平喘的主要成分是()

A. 苦杏仁苷
B. 杏仁腈
C. 苦杏仁酶
D. 苯甲醛
E. 挥发油

查看答案

搜索结果不匹配？点我反馈

更多问题

川乌、草乌炮制的目的是()

A. 杀酶保苷
B. 降低毒性
C. 增强疗效
D. 改变性能
E. 矫臭、矫味

Is ______Qinghai-Tibet Railway plays an iportant role in China’s railway history the topic that you are coming to?

A. what
B. it
C. this
D. that

Stage fright is a common example of _______educators call a “lack of confidence” among student.

A. that
B. what
C. which
D. whose

Tom eagerly finished up _____was left of the chicken pie.

A. what
B. which
C. that
D. as