羊绒为什么贵,这就是答案

In Leon Nacson’s view, air and water are our Number One priorities for the following reasons except ().

A、he cannot understand why people are polluting air and water

B、there will definitely be no fresh air and clean water for future generations

C、we would run out of air and water if we didn’t stop polluting them

D、air and water polluting are the current and futu

参考答案：ABD

Cold weather starting of a diesel engine is more difficult than warm weather starting due to

A.use of low viscosity oil in cold weather

B.increased moisture content of inlet air in cold weather

C.increased drag of pistons and bearings due to increased oil viscosity

D.higher compression pressures reached due to smaller clearances existing in the engine during cold weather

正确答案：C

if it is cold ,you will find the air conditioner compressor stop automatically ,do you know the reasons ?

正确答案：When it is cold ,the suction pressure should be low ,if the suction pressure is lower than the setting pressure of the pressure controller ,the compressor will stop automatically .

Temperature and moisture characteristics are modified in a warm or cold air mass due to ______.

A.pressure changes in the air mass

B.movement of the air mass

C.the heterogeneous nature of the air mass

D.upper level atmospheric changes

正确答案：B

Steam smoke will occur when ______.

A.extremely cold air from shore passes over warmer water

B.warm dry air from shore passes over cooler water

C.cold ocean water evaporates into warm air

D.cool rain passes through a warm air mass

正确答案：A

羊绒为什么贵？答案在这里Why is cashmere expensive? The answer is here羊绒，贵得有理有据。Cashmere, you re well -justified.到了冬天，气温一天天降低，冷空气正式发威。微博最近出了一个搞笑的段子：冷空气一来，竟然在南方冻成了狗。为此不少人就开始囤起羊绒衫了，这个时候很多人就会问：羊绒衫怎么这么贵呀？In the winter, the temperature decreased day byday, cold air officially angry. Micro bloggingrecently out of a funny piece: the cold air one, even in the South frozen into a dog. To this end a lotof people began hoarding cashmere sweater, andthistime a lot of people will ask: how so expensive yourcashmere sweater?今天我们就来聊聊羊绒之“贵”。Today we will talk about cashmere "expensive."羊绒之贵，是“珍贵”的贵。Cashmere of your, is the "precious" expensive.羊绒原料稀有，仅占世界动物纤维总量的 0.2% 。羊绒不同于羊毛，羊毛覆盖在绵羊表层，一只绵羊的毛可以做成十几件羊毛衫；羊绒是生长在山羊外表皮层，掩在山羊粗毛根部的一层薄薄的细绒，入冬寒冷时长出，抵御风寒，开春转暖后脱落，自然适应气候。Cashmere raw materials rare, only 0.2% of theworld's total animal fiber. Cashmere is differentfrom wool, wool covering the surface of sheep, asheep's hair can be made into more than a dozen pieces of woolen sweater; cashmere is the growth of goats in the outer cortex, cover the goats in the roots of thin layer of fine wool, winter Cold, grow, to resist the cold, spring after the fall off, natural to adapt to climate.羊绒需要慢慢从山羊身上梳下来，五只山羊的绒，才能织成一件羊绒衫。羊绒属于非常稀有的特种动物纤维，在交易中常常以克论价，被人们认为是 “软黄金 ”、 “纤维宝石 ”、 “纤维皇后 ”。Cashmere need to slowly comb down from the goats ， five goats of cashmere to weave into a cashmere sweater. Cashmere is a very rare special animal fiber, often in the transaction on grams of price, is considered to be "soft gold", "fiber diamond", "fiber Queen."羊绒之贵，是“贵族”的贵。Cashmere of your, is the "nobility" of your.羊绒的贵族血统由来已久。拿破仑出征埃及，凯旋而归时，他不远千里把一条来自克什米尔地区的名贵披肩带回法兰西，送给了心爱的约瑟芬皇后。轻薄柔滑、华美无比的羊绒披肩令皇后感动不已，在约瑟芬皇后的引领下，这些来自喜马拉雅山脉的精美羊绒披肩迅速俘获了西方人的心，羊绒也藉此流向欧洲，成为欧洲贵族证明身份地位的象征。并成为风靡巴黎乃至欧洲的上层贵族人士必备时髦奢侈品。The aristocratic descent of cashmere has a longhistory. Napoleon set off in Egypt, triumphantreturn, he traveled a thousand miles from theKashmir region of the expensive shawl back to France, gave the beloved Queen Josep

Hygroscopic cargoes should be ventilated when ______.

A.going from a warm to a cold climate

B.the dew point of the outside air is greater than the dew point of the air in the hold

C.the dew point of the air in the hold is very low

D.the outside dew point is 16°C and the cargo temperature is 12°C

正确答案：A

______ is a type of fog occurring close to the sea surface when the air is dry and cold-probably at least 9℃ below the sea surface temperature．

A.MIXING FOG

B.ADVECTION FOG

C.RADIATION FOG

D.ARCTIC SEA SMOKE

正确答案：D

A frontal thunderstorm is caused by ______.

A.pronounced local heating

B.wind being pushed up a mountain

C.a warm air mass rising over a cold air mass

D.an increased lapse rate caused by advection of warm surface air

正确答案：C
雷暴天气是由于暖气团的上升超过冷气团造成的。

Advection fog is most commonly caused by ______.

A.air being warmed above the dew point

B.saturation of cold air by rain

C.a rapid cooling of the air near the surface of the Earth at night

D.warm moist air being blown over a colder surface

正确答案：D
平流雾最普遍产生于温暖潮湿的空气吹过较冷的水面。

When did you last see a polar bear?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These"Polar Bears"are people who-meet frequently in winter to swim in freezing cold water.That day,the air temperature was 3oC,and the water temperature was a bit higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group.This is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February.
Doctors do not agree about the medical effects of cold-water swimming.Some are worried about the dangers of a condition in which the body′s temperature drops so low that finally the heart stops.Other doctors,however,point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter.
The Polar Bears themselves are satisfied with the benefits（or advantages）of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system（循环系统）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming.
The main benefits（or advantages）of cold-water swimming are probably mental.The Polar Bears love to swim year-round;they find it fun and relaxing.As one 70-year-old woman says,"When I go into the water,I pour my troubles into the ocean and let them float away."

The passage is mainly about

A.a group of cold-water-swimming lovers
B.the Polar Bears'life in New York
C.doctors'ideas about cold-water swimming
D.the requirements of the Polar Bear Club

答案：A

解析：

考情点拨:主旨大意题。应试指导:本文讲述了冬泳爱好者的一些状况。

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考题 When did you last see a polar bear?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These"Polar Bears"are people who-meet frequently in winter to swim in freezing cold water.That day,the air temperature was 3oC,and the water temperature was a bit higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group.This is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February. Doctors do not agree about the medical effects of cold-water swimming.Some are worried about the dangers of a condition in which the body′s temperature drops so low that finally the heart stops.Other doctors,however,point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter. The Polar Bears themselves are satisfied with the benefits（or advantages）of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system（循环系统）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming. The main benefits（or advantages）of cold-water swimming are probably mental.The Polar Bears love to swim year-round;they find it fun and relaxing.As one 70-year-old woman says,"When I go into the water,I pour my troubles into the ocean and let them float away."According to the passage,some doctors believe it is true thatA.you are healthy if cold-water swimming turns your skin color blue B.cold-water swimming causes more heart attacks in summer than in winter C.cold-water swimming can make the body temperature dangerously high D.Polar Bears are bears swimming in freezing water答案：B解析：考情点拨:事实细节题。应试指导:从第二段第三句可知，有些医生认为夏李气温和水温差别大，游泳时易发生心脏病，而冬季游泳确相反。

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考题单选题Hygroscopic cargoes should be ventilated when（）.A going from a warm to a cold climateB the dew point of the outside air is greater than the dew point of the air in the holdC the dew point of the air in the hold is very lowD the outside dew point is 16°C and the cargo temperature is 12°C正确答案：C解析：暂无解析

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考题 While working in the server room a technician notices that water is forming on the walls of the serverroom. Which of the following is the BEST course of action to correct the problem？（）A、 Contact facilities staff to adjust the humidity levels.B、 Leave the temperature the same， after time it will evaporate on its own.C、 Lower the temperature， the cold air will help the water evaporate.D、 Contact facilities staff to raise the temperature of the room.正确答案:A

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考题单选题They know that strong winds, mild and humid air, and cold air near to each other might trigger a really explosive weather situation.A cause B imply C forecast D reduce正确答案：C解析：句意：他们知道强风、温和潮湿的空气和冷空气聚在一起会引发剧烈的天气变化。trigger引发，引起，触动。cause引起，导致。imply暗示。forecast预告。reduce减少。

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考题单选题An electric heater built into some smaller diesel engines is used to （）.A raise lube oil viscosity for easier starting in cold weatherB increase air inlet temperatureC increase compression ratioD increase jacket water temperature for easier starting in cold weather正确答案：D解析：暂无解析

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考题单选题Air entering an air-cooled refrigeration system is indicated by （）.A frosting of the liquid lineB higher than normal head pressureC a clear sight glassD abnormally cold reefer boxes正确答案：B解析：暂无解析

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考题单选题Which of following functions is not one of the functions of air conditioner?（）A refreshing the airB making person upsetC adjusting the air humidityD adjusting the air temperature正确答案：A解析：暂无解析

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考题 When did you last see a polar bear?On a trip to a zoo,perhaps?If you had attended a winter activity in New York a few years ago,you would have seen a whole polar bear club.These"Polar Bears"are people who-meet frequently in winter to swim in freezing cold water.That day,the air temperature was 3oC,and the water temperature was a bit higher.The members of the Polar Bear Club at Coney Island,New York are usually about the age of 60.Members must satisfy two requirements.First,they must get along well with everyone else in the group.This is very important because there are so many different kinds of people in the club.Polar Bears must also agree to swim outdoors at least twice a month from November through February. Doctors do not agree about the medical effects of cold-water swimming.Some are worried about the dangers of a condition in which the body′s temperature drops so low that finally the heart stops.Other doctors,however,point out that there is more danger of a heart attack during summer swimming because the difference between the air temperature and water temperature is much greater in summer than in winter. The Polar Bears themselves are satisfied with the benefits（or advantages）of cold-water swimming.They say that their favorite form of exercise is very good for the circulatory system（循环系统）because it forces the blood to move fast to keep the body warm.Cold-water swimmers usually turn bright red after a few minutes in the water.A person who turns blue probably has a very poor circulatory system and should not try cold-water swimming. The main benefits（or advantages）of cold-water swimming are probably mental.The Polar Bears love to swim year-round;they find it fun and relaxing.As one 70-year-old woman says,"When I go into the water,I pour my troubles into the ocean and let them float away."The Polar Bears like to swim all the year round,forA.they can remain young B.it is an easy way to keep the body warm in winter C.they find it enjoyable and interesting D.they might meet fewer troubles in life答案：C解析：考情点拨:事实细节题。应试指导:从第四段第二句可知，冬泳爱好者一年四季都游泳，这样他们感到快乐和轻松。

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考题单选题Hygroscopic cargoes should be ventilated when（）.A going from a warm to a cold climateB the dew point of the outside air is greater than the dew point of the air in the holdC the dew point of the air in the hold is very lowD the outside dew point is 16℃ and the cargo temperature is 12℃正确答案：C解析：暂无解析

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考题单选题Temperature and moisture characteristics are modified in a warm or cold air mass due to （）.A pressure changes in the air massB movement of the air massC the heterogeneous nature of the air massD upper level atmospheric changes正确答案：B解析：暂无解析

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羊绒为什么贵,这就是答案

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