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To prevent the spread of fire by convection you should ().
A . remove combustibiles from direct exposure
B . cool the bulkhead around the fire
C . close all openings to the area
D . shut off electrical power
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The immigrants spread unevenly across the country,with()having the largest percentage of immigrants.
A . Northeast
B . the West
C . Midwest
D . the South
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Fire dampers prevent the fire spreading through the process of ().
A . convection
B . conduction
C . radiation
D . direct contact
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Fire dampers prevent the spread of fire by().
A . convection
B . conduction
C . radiation
D . direct contact
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The spread of fire is prevented by().
A . cooling surfaces adjacent to the fire
B . leaving combustibles in the endangered area
C . increasing the oxygen supply
D . All of the above
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To prevent the spread of fire by conduction, you should ().
A . cool the bulkheads around the fire
B . remove combustibles from direct exposure
C . close all openings to the area
D . shut off all electric power
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The spread of fire is NOT prevented by().
A . shutting off the oxygen supply
B . cooling surfaces adjacent to the fire
C . removing combustibles from the endangered area
D . removing smoke and toxic gases by ensuring adequate ventilatio
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Spreading oil on the open sea has the effect of().
A . diminishing the height of the seas
B . lengthening the distance between successive crests
C . increasing the height of the seas
D . preventing the wave crests from breaking
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The news quickly spread throughout the campushe won the first prize in thecompetition.
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CNN, Cable News Network, is the first network to provide 24-hour television news coverage, and the first all-news television network in the U.S.
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In the movie Moana , Grandma said, ‘And the darkness has continued to spread .’( )
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27. The news quickly spread throughout the campus ________ he won the first prize in the competition.
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He told his wife as little as possible, _______ she spread the news all over the town.
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That widely spread news______a rumor.
A.proved being
B.proved
C.were proved
D.was proved that
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How does the article suggest the matter that makes up the Earth was first spread through the universe?
A.Through expulsion from black holes.
B.Through the explosions of stars.
C.Hydrogen propulsion.
D.Theoretical balancing.
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The term “mobile phone newspapers” refers to the news published in regularly recurring text and spread through mobile phones. The statement is a fact.
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The difference between Z-spread and nominal spread will most likely be the most significant for a:
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Questions 20 and 21 are based on the following news. At the end of the news item you will be given 20 seconds to answer the questions. Now listen to the news.
A police spokesman said the devices were made safe by explosive experts in the Ardorn district, where a woman was shot in the leg and 13 police officers were injured during a second successive night of violence. Northern Ireland’s police chief had earlier called on community leaders to work together to end the violence. The violence has erupted sporadically throughout a summer of Sectarian tension in northern Belfast.
Questions 20 and 21 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions.
Now listen to the news.
20. Altogether how many people were injured during the violence?
A.1.
B.2.
C.13.
D.14.
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No nation leaped into the 20th century like Japan. For two hundred years, Japan remained and isolated from the rest of the world. It doubted of western ways. In 1854, Commodore Perry of the U. S. Navy sailed into Tokyo Bay. When he showed the people inventions like the telegraph and railroad train, Japan realized what it was missing. Japan has quickly caught up with western technology. It may have even gone past it.
Japan has a population of over 116,000,000. The people are thickly settled on the four main islands. Since only one sixth of the land is arable, Japan relies on imported food. To pay for the imports, Japan exports manufactured goods.
Japan builds and sells cars, motorcycles, television sets, radios and cameras. Textiles and chemicals also made. In Yokohama Harbor, ships are constructed for use by other nations.
The "head start" western nations had may be the reason for Japan's success today. Western countries are still using machines and technology that they developed many years ago. Japan is using newer, improved methods. For example, robots are relieving factory-workers of long, tiring jobs.
Modem technology has brought modern problems. Air and water quality reached dangerous levels in some parts of Japan in the late 1960's. Since then, the Japanese government has applied strong pollution controls.
The main idea of the passage is that Japan ________.
A.surprises the world.
B.Suffers from serious air and water pollution
C.Leads in exporting goods
D.Leads in technology in the world today
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Rescue teams from all over the world_____on the earthquake-stricken area after the news spread that the quake, which measured 7.9 on the Richter scale, had claimed a toll of 15,000 lives.
A.diversified
B.disseminated
C.converged
D.accelerated
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()no modern telecommunications, we would have to wait for weeks to get news from around th
A.Were there
B.If there are
C.If there have been
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Are the following contrasting facts of our world in the future from News 1 or News 2 Make a choice and compare the two versions of our world in the future.A.News 1
B.News 2
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On hearing the news, I________________(忍不住笑起来)and spread it among the class.