更多"Iron and steel expands when heated "的相关试题:
[单项选择]Iron and steel expands when heated and_______when cooled.
A. shrinks
B. contracts
C. condenses
D. compresses
[单项选择]Pigiron, wrought iron, and steel contain iron carbides made up of ______ of carbon.
A. (amounts are different
B. ( different amounts that
C. ( different amounts
D. ( which amounts are different
[单项选择]The wrongly-designed iron-steel bridge was finally
A. shipped away
B. sold at a low price
C. made into many rings
D. used again after repairing
[单项选择]An iron and steel works, with several satellite factories, ______ in that city now.
A. is built
B. is being built
C. were built
D. are being built
[单项选择]Iron and steel are flexible. But they are not as flexible ______ rubber.
A. as
B. to
C. for
D. by
[单项选择] ____ is rooted in experiments in iron and steel conducted in the nineteenth century.
A. While the history of twentieth-century architecture
B. The history of twentieth-century architecture
C. That the history of twentieth-century architecture
D. Both twentieth-century architecture and its history
[单项选择]Steel is an alloy composed （） of iron and carbon.
A. primarily
B. traditionally
C. carefully
D. partially
[单项选择]Steel works are encouraged to purchase ______ iron so as to reduce the consumption of natural resources.
A. scrap
B. scrape
C. scratch
D. snap
[单项选择]At present, there is a ______ of iron and steel and more must be produced.
A. Limit
B. loss
C. poverty
D. scarcity
[单项选择]Steel is an alloy composed ______of iron and carbon.
A. primarily
B. traditionally
C. carefully
D. partially
[单项选择]When carbon is added to iron in proper ______ the result is steel.
A. rates
B. thicknesses
C. proportions
D. densities
[单项选择]Her suggestion that the company expands its business in Southeastern Asia ______ workable.
A. sounds
B. looks
C. feels
D. tastes
[单项选择]As physical exercise declines and diet expands, ______.
A. other western countries has been defeated by fat
B. obesity has become an epidemic (流行病) of the rich world
C. waistbands begin to be popular in other western countries
D. western countries can no longer fight against obesity
[单项选择]There was a heated discussion about customer service at the meeting until the manager came up with a great idea．
A. 经理提出的关于客户服务的好主意，在会议上引起了大家的热烈讨论。
B. 经理到会之前，会议还在对那个客户提出的合理建议进行热烈的争论。
C. 会议就客服问题进行了热烈讨论，直到经理提出一个绝妙主意才停止。
D. 会议一直在热烈讨论客服问题，直到结束时经理才想出了一个好主意。
[单项选择]They had a heated discussion on the topic but came to no _____.
A. end
B. idea
C. result
D. conclusion
[单项选择]After a three-hour heated discussion, all the members in the jury reached the conclusions that the man was ______of murder.
A. criminal
B. charged
C. guilty
D. faulty
