问题 单项选择题

贵重药材、毒剧药材及高浓度制剂药材的提取应采用()

A.煎煮法

B.浸渍法

C.渗漉法

D.水蒸气蒸馏法

E.超临界流体提取法

答案

参考答案:C

解析:渗漉法是将药材粗粉装于渗漉器内,在药粉上添加溶剂,使其渗过药粉,自下部流出浸出液的一种动态浸出过程。适用于贵重药材、毒性药材及高浓度制剂;也可用于有效成分含量较低的药材提取。故1题答案选C。浸渍法适用于黏性药材、无组织结构药材、新鲜及易于膨胀的药材、价格低廉的芳香性药材的浸提。故2题答案选B。

选择题
完形填空

Do you think that a universal language will emerge within the next century? English is   51  the lingua franca in many parts of the world, and is the best language currently to know   52  business and science,   53  I don’t think English will   54  become a universal language. I think that if a language becomes the world language, it should be an artificial one.   55 , it might seem to many as an effort to   56  a certain cultural group. The   57  with a universal language is how to   58  it, and how to get the governments of the world to agree   59  its implementation.

If this were to happen, the international language would be the   60  second language of all countries, and legally it would still play second fiddle to the current language of that country. It could allow different tribes in Africa to communicate, or   61  communication between small villages in India that each speaks different languages. Not to   62  it would mean that one would only have to learn two languages no matter   63  in the world he travels.

What   64  specifics—what writing   65  should it use? Where should its words come from? Should the language be highly inflected or very analytical? And furthermore, how will the language be established?

小题1:

A.preciously

B.uncertainly

C.indefinitely

D.currently小题2:

A.for

B.under

C.over

D.in小题3:

A.so

B.moreover

C.but

D.therefore小题4:

A.even

B.hardly

C.still

D.ever小题5:

A.Otherwise

B.Meanwhile

C.Nevertheless

D.So小题6:

A.promote

B.exceed

C.conduct

D.predict小题7:

A.problem

B.impact

C.benefit

D.result小题8:

A.set

B.build

C.rank

D.publish小题9:

A.for

B.about

C.in

D.on小题10:

A.normal

B.official

C.legally

D.suddenly小题11:

A.cause

B.enable

C.make

D.persuade小题12:

A.tell

B.mention

C.say

D.speak小题13:

A.how

B.what

C.where

D.whether小题14:

A.about

B.for

C.if

D.kind of小题15:

A.organization

B.change

C.management

D.system