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The writer explains the boiling water by using ______.
A. myths
B. humor
C. facts
D. arguments
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更多 “ The writer explains the boiling water by using ______.A. mythsB. humorC. factsD. arguments ” 相关考题
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29． The writer thinks that people in large cities should __________ ．A． stop the used water from getting into undergroundB． only use the water from the riversC． make their used water clean againD． use as much sea water as possible
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30． In order to solve the problem of water shortage，we' have to________．a． make use of sea water on the earthb． save as much fresh water as possiblec． reuse the water from large citiesd． stop people from，using watere． only use the 3% of the water on the earthA．a and eB．a，b and cC．b，c and dD．a，b and d
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The writer reveals the "foolishness" of the custom in the paragraph by ______.A. giving old or humorous examplesB. using convincing argumentsC. giving eyewitness accountsD. saying that Philip IV of Aragon put a stop to it
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Why does the writer of the letter that Electro-Robo is violent?A. It is control to radio water.B. It is expensive to buy.C. It is 80 centimeterD. It bears arms.
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Most people are able to laugh, a sense of _______ is, simply put, the ability to be amused.
A. humanityB. humorC. hurryD. hunger
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When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and ___ the sea water passing through the tubes.A.disposeB.dissolveC.heatD.dissipates
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A writer who wants to convince his readers of a point of view must marshall his arguments assert the virtues of his opinions，and( )the possible protests of the opposition. A.diminish
B.demonstrate
C.declare
D.demolish
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单选题How did the writer escape the bees?A
She covered her face with her hands.B
She hid behind the rocks.C
She jumped into a water pool.D
She pretended to be a rock.
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单选题In what order are the following mentioned in the story?a. The writer rushed down the rocks.b. John jumped into the water.c. The low hum grew louder.d. The bees flew back over their heads.e. The bees were attacking the writer.A
b c e a dB
b a e c dC
c d e a bD
c b d e a
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单选题What is the operating principal of a flash type evaporator?（）A
Sea water is heated to boiling temperature under a vacuumB
Sea water is passed over heated plates in a thin filmC
Heated sea water is injected into a vacuum chamberD
Sea water is forced through a heated eductor
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单选题A definite advantage of using water as a fire extiguishing agent is its characteristic of（）.A
alternate expansion and contraction as water in a liquid state becomes a vaporB
absorption of smoke and gases as water is converted from a liquid to a vaporC
rapid contraction as water is converted from a liquid to a vaporD
rapid expansion as water absorbs heat and changes to steam
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单选题An excessive amount of water is prevented from entering a vessel using a water lubricated stern tube bearing by the use of the （）.A
propeller hubB
lignum vitaeC
shaft packingD
labyrinth seal
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单选题In （）, hot diesel engine jacket water passes over the stack and heats the sea water passing through the tubes.A
a flash generatorB
a flash evaporatorC
a vacuum boiling evaporatorD
a boiler
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单选题With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out by （）.A
a brine pumpB
an air ejectorC
a feed pumpD
distillate pump
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单选题Because of the reduced （） in the vacuum boiling evaporator, some of the sea water boils as it flows through the tubes.A
temperatureB
water levelC
pressureD
rate of flow
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单选题Which of the following descriptions best identifies the operating principal of a flash-type evaporator?（）A
Sea water is heated to boiling temperature while under a vacuumB
Sea water is passed over heated plates in a thin filmC
Heated sea water is injected into a vacuum chamberD
Sea water is forced through a heated eductor
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单选题Water ______ be changed into gas, but it ______ be heated to its boiling point.A
must; canB
may; needn’tC
can; mustD
need; may
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单选题At the beginning of the 20th century, people made coffee _____ a cloth bag full of coffee grounds into boiling water.A
by dumpingB
to dumpC
for dumpingD
that dumped
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单选题For the proper control of the air temperature in an air conditioning system using chilled water circulation, which of the listed conditions should remain constant regardless of load changes?（）A
Chilled water system supply temperatureB
Chilled water system return temperatureC
Compressor discharge temperatureD
Compressor suction pressure
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问答题Water is vital for our survival and for producing food. It takes about a thousand tons of water to produce one tone of grain that, fed to cows, produces only 18 pounds of meat. Today mankind is using about 160 billion tons more water each year than is being replenished by rain and fed back into water storages. If this water were carried in water trucks, it would require a 300, 000-mile-long convoy of trucks every day—a convoy length 37 times the diameter of the Earth. This is how much water we are using and not replenishing.
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单选题All classes of fires can be safely combated using（）A
foamB
CO2C
low velocity water fogD
high velocity water fog
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单选题In a vacuum boiling evaporator, the fresh water generated is pumped out by （）.A
a brine pumpB
an air ejectorC
a feed water pumpD
a condensate pump
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单选题Water level controllers of the boiler must be kept operable to protect external steam-using plant from water “（）” danger.A
carry offB
carry downC
carry onD
carry over
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单选题At the beginning of the 20th century, people made coffee ______ a cloth bag full of coffee grounds into boiling water.A
by dumpingB
to dump C
for dumping D
that dumped
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单选题Which of the following statements is correct relative to distillation plant operation?（）A
Distillation is the process of boiling seawater to produce vapor which is condensed into fresh waterB
Evaporation is the second part of the distillation process where brine is removedC
Brine is the result of condensed sea water vaporD
Distillate is the product resulting from the evaporation of fresh water vapor
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