更多"Producing elastin through chemical "的相关试题:
[单项选择]People learn better through TV than through radio because ______.
[单项选择]How many companies were involved in producing the hydranlic part for the film Tianic
A. Three.
B. Only one.
C. Two.
D. Four.
[单项选择]Many producing countries ______.
A. have become consuming countries
B. recognize a problem in the spread of AIDS
C. find it easier to control both production and consumption
D. all of the above
[单项选择]Employees in chemical factories are entitled to receive extra pay for doing hazardous work.（）
A. poisonous
B. difficult
C. dangerous
D. harmful
[单项选择]Water enters into a great variety of chemical reactions, （）have been mentioned in previous pages.
A. a few of it
B. a few of them
C. a few of that
D. a few of which
[单项选择]He plans to study chemical engineering so that he could become an engineer.
A. 他打算学习化学工程，这样他就成为了一名化学工程师。
B. 他定下学习化学工程的计划，要成为一名化学工程师。
C. 他的计划是去学习化学工程，所以他会成为一名化学工程师。
D. 他打算学习化学工程，以便成为一名化学工程师。
[单项选择]We can separate the mixture into the pure chemical compounds ______ it is composed.
A. in which
B. of what
C. of which
D. from which
[单项选择]Environmental factors such as chemical treatments have a bad effect on the hair in the long nm.
A. 环境因素，比如化学处理等对头发都不好。
B. 从长远来看，环境，化学处理对头发都有影响。
C. 从长远来看，头发被化学等因素的影响是很坏的。
D. 从长远来看，环境因素，比如化学处理对头发都有不好的影响。
[单项选择]This chemical is made（）a special formula.
A. from
B. of
C. according to
D. in
[单项选择]The meat packing industry is focused on producing meat for human consumption, but it also yields a ______ of by-products such as hides and feathers.
A. varies
B. various
C. vary
D. variety
[单项选择]What causes are forces producing severe stresses on today's children except______
A) urbanization C) one-parent family
B) unwed and divorced mothers D) poverty
[简答题]passage through Customs
[单项选择]After they tested the chemical and biological ______ of the samples we had sent them, they wrote up the report.
A. assets
B. characters
C. abnormities
D. properties
[单项选择]If a monopoly is producing in the inelastic range of the demand curve, increasing the quantity produced will most likely:（）
A. decrease total revenue.
B. have no effect on total revenue.
C. increase total revenue.
