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The heat identified by only a change in temperature is known as ().
A . sensible heat
B . latent heat
C . total heat
D . residual heat
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In motor ship, () is often used to recover some of the heat carried in the exhaust gases from the main engine.
A . an diesel oil heater
B . a waste heat boiler
C . a fresh water generator
D . all the above
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A tropical wave is located 200 miles due west of your position,which is north of the equator. Where will the wave be in 24 hours? ()
A . Farther away to the west
B . Farther away to the east
C . In the same place
D . Closer and to the west
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In a refrigeration system, the refrigerant absorbs the latent heat of vaporization in the().
A . compressor
B . condenser
C . receiver
D . evaporator
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The latent heat of water vapor in air is dependent upon the ()
A . dry bulb temperature
B . wet bulb temperature
C . dew point
D . dry point
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The ship()on a low rock was broken in two by the waves.
A . that had been driven
B . had been driven
C . have been driven
D . which to have been drive
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Why did the man wait in the heat for two hours?
A . The coach had to be replaced.
B . The coach driver felt sick.
C . The hotel rooms were full.
D . The hotel had to be cleaned.
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The condition where a ship on the end of a tow line is riding a wave crest at the same time as its tug rides a wave crest is known as riding in().
A . synchronism
B . harmony
C . check
D . ste
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In the northern hemisphere, the largest waves or swells created by a typhoon or hurricane will be located().
A . in the southeast quadrant of the storm
B . directly behind the storm center
C . forward and to the right of its course
D . behind and to the left of its course
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The latent heat of evaporation is dissipated in the () in a compression refrigeration system.
A . evaporator
B . condenser
C . expansion valve
D . compressor
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In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because().
A . shock loading on the tow line is reduce
B . towing speed is improved
C . the vessel is more visible from the tug
D . the catenary of the tow line is reduced
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In shallow water,waves that are too steep to be stable,causing the crests to move forward faster than the rest of the wave,are called().
A . rollers
B . breakers
C . white caps
D . surfer
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Simile is used in the sentence “The waves were mountain high.”
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We always turn off the _ (heat) in May and turn it back on in October.
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In winter, some people energy by lowing the heat at night.
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What made the feminists so angry in the second wave of feminism?
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The outside air's temperature determines the amount of extra heating needed in the ripening room.
A.Y
B.N
C.NG
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听力原文: Dozens of people were feared dead in a heat wave in Orissa, India, an official said on Tuesday, at the start of the harsh summer in which temperatures hit around 50 degrees Celsius.
The government official confirmed seven heat wave deaths in Orissa and said the government was investigating at least 71 more cases. Details were unclear, but officials say deaths are normally caused by dehydration and sunstroke.
High temperatures are hitting most of India, including the capital, New Delhi, but no deaths have yet been reported.
In the summer of 2003, more than 1,400 people--most of them homeless, beggars or street hawkers-- died in the worst heat wave to hit large parts of India in several years.
The government confirmed that ______ people were killed in the recent heat wave in Orissa.
A.seven
B.dozens of
C.fifty
D.seventy-one
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The megaphone makes the voice sound louder because it points sound waves in one direction and keeps them from spreading out in all directions.
A.slithering
B.radiating
C.interfering
D.murmuring
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The modern sailing ship was developed by a man who never went to sea. He was Prince Henry of Portugal, the younger son of the Portuguese king and in English princess.
Prince Henry lived in the fifteenth century. As a boy he became devoted to the sea, and he dedicated (devoted) himself" to improving the design of Ships and the methods or sailing them. In 1416, when he was twenty-two. Henry founded a school for mariners, to which he invited everyone who could help him —— Jewish astronomers, Italian and Spanish sailors, and Arab mathematicians and map makers who knew how to use the crude compass of the day and could improve it.
Henry's goal was to design and equip vessels that would be capable of making long ocean voyages without having to hug (keep close to) the shore. The caravel carried more sail and was longer and slimmer than any ship then made, yet was tough enough to withstand gales at sea. He also developed the carrack, which was a slower ship, but one that was capable of carrying more cargo.
To Prince Henry the world owes credit far development of craft that made oceanic exploration possible. He lives in history as Henry the Navigator.
1.Prince Henry's principal achievement was that of ______
A、making oceanic exploration possible
B、improving the compass
C、founding a school for mariners
D、inventing the clipper ship
2.Prince Henry''s goal was to design vessels that could ______.
A、make long deep-sea voyages
B、travel faster than those in use at that time
C、explore the coastline of. Portugal
D、carry larger crews and more cargo than existing ones
3.Prince Henry started his school for the purpose of ______.
A、helping mariners
B、improving ship design and sailing methods
C、studying astronomy and mathematics
D、improving his own skill as a sailor
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In a diesel engine, offers the heat energy directly; works as working medium and changes the heat energy to mechanical energy.
A.the burning of the fuel; medium shaft
B.fuel spray; fresh air
C.fuel; fuel spray
D.the burning of the fuel; the burned gas mixture
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In no way__________ the amount of heat.
A.the temperature equals
B.equals the temperature
C.does the temperature equal
D.does the temperature equals
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The heat in summer is no less____here in this mountain region.
A.concentrated
B.extensive
C.intense
D.intensive
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After an intense three-month heat wave, Indians in the north and east of the subcontinent were praying hard for rain. Their prayers were heard and answered in the form. of a curse. Violent downpours flooded much of the country, drowning more than 500 people and leaving thousands more homeless. Walls of water hit 26 cities and 2,500 villages, washing away bridges, submerging reads and railways in waist- deep torrents, cutting power lines and wiping out animals, crops and factories. In all, the storm destroyed more than $ 1 billion worth of property. The death toll in neighboring Bangladesh rose to nearly 300 since mid-June. More than 400 people died in Nepal and another 700 were missing.
The rains hit India hardest in Punjab (旁遮普邦), which was transformed into a wasteland of collapsed houses and dead cattle. In the village of Doomchheri, 40 km southwest of Chandigarh, Punjab's capital, floods rising to a height of 4m washed away 400 of the 700 homes and destroyed all the crops. Jaswant Kaur and her family of five clung to trees when their mud hut collapsed. One cousin drowned; the other four swam to safety, reaching the second story of a neighbor's home. Wailed Jaswant:" What have we done to be cursed like this ?"
In the country the armed forces were mobilized to help. In Punjab 5,000 uniformed men used helicopters and assault boats to rescue victims isolated by flood, distribute food and medicine and, finally, remove the dead. Near the town of Patiala, 85 km south of Chandigarh, all 16 members of a rescue team drowned when their boat tipped over in 4m waves. One soldier named Sohan Singh could have survived, witnesses reported, but he ordered panic-stricken villagers to cling to him while he struggled toward safety. His body was found four days later, along with two dead villagers whose arms were wrapped around one of his legs.
Which of the following is the best title for the passage?
A.Curse of Heaven
B.Floods Hit India
C.Floods Claim Hundreds of Lives
D.A Terrible Disaster