题目内容
（请给出正确答案）
[单选题]
The present low productivity of factory ______ discontent among its lower－paid workers.
A.results in
B.derives from
C.stems from
D.stands for
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.results in
B.derives from
C.stems from
D.stands for
如果结果不匹配，请 联系老师 获取答案
更多“The present low productivity o…”相关的问题
A．you are able to obtain the necessary funds at a low nominal interest rate
B．the investment does not affect your cost of production
C．the present value of future income exceeds the cost of the investment plus interest on any money that you must borrow
D．you observe that your competitors are expanding their productive capital
What might the author most probably continue to talk about in the following passage？
A. What's the most objective way to test one's English standards？
B. How to improve the present low level of language learning？
C. Why have the English standards declined？
D. What are the benefits if Japanese people can learn English well？
A.hammer
B.humane
C.humanoid
听力原文： To extinguish different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable kinds operate for less than a minute, so they are useful only on small fires. The law requires ships, trains, buses and planes to carry extinguishers.
Since fuel, oxygen and heat must be present in order for fire to exist, one or more of these things must be removed or reduced to extinguish a fire. If the heat is reduced by cooling the material below a certain temperature, the fire goes out. The cooling method is the most common way to put out a fire. Water is the best cooling material because it is low in cost and easy to get.
Another method of extinguishing fire is by cutting off the oxygen. This is usually done by covering the fire with sand, steam or some other things. A blanket may be used to cover a small fire.
A third method is called separation, which includes removing the fuel, or material easy to burn, from a fire, so that it can find no fuel.
The method that is used to put out a fire depends upon the type of fire. Fires have been grouped in three classes. Fires in wood, paper, cloth and the like are called Class A fires. These materials usually help keep the fire on. Such fires can be stopped most readily by cooling with water.
(30)
A．Separating the fire.
B．Reducing the heat.
C．Removing the fuel
D．Cutting off the oxygen.
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What type of business is being advertised？
A．A bank
B．A fitness club
C．A web-site design firm
D．An office-supply company
His future plan may NOT include
A．expanding the market for jam.
B．developing other food products.
C．buying supermarkets in America
