牡丹皮的重要化学成分() A.芍药苷 B.挥发油中以α、β-桉油醇为主,约94%~9

题型:单项选择题

问题:

牡丹皮的重要化学成分()

A.芍药苷

B.挥发油中以α、β-桉油醇为主,约94%~98%

C.挥发油以桂皮醛为主

D.桃叶珊瑚苷

E.含生物碱以小檗碱为主

考点:中药执业药师中药学专业知识(二)中药执业药师中药学专业知识(二)
题型:单项选择题

名著阅读。

  《论语》是记录了孔子和他的弟子言行的一部书,是______家经典著作之一,是过去蒙童教育的必读、必背之书。书中很多章节讲学习的态度和方法,如“学而不思则罔,思而不学则殆”,阐述了______之间的辩证关系;“温故而知新,可以为师矣”则强调了学习时______的重要性。

题型:单项选择题

The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether.

In the figure above, what is the length of WZ ?() (Note, figure not necessarily drawn to scale.)

(1) xy=64

(2) x2=y2

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is sufficient.

E. Statements (1) and (2) TOGETHER are NOT sufficient.

题型:单项选择题

集装箱的容积一般是( )。

A.大于1m3

B.大于10m3

C.大于20m3

D.大于40m3

题型:单项选择题

简述在线炉的控制要点?

题型:单项选择题

对于矽卡岩矿床来说,最重要的控矿构造是()。

更多题库