单选题You should not divide the fresh water（）three trips.AinBintoCtoDfor
单选题
You should not divide the fresh water（）three trips.
A
in
B
into
C
to
D
for
参考解析
解析：
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相关考题：
I should have to divide the class into three groups and teach them _________ at three different levels. A. by turnB. for turnC. in turnD. of turn
BThe world is not only hungry，it is also thirsty for water． this may seem strange to you，since nearly 75% of the earth is covered with water． But about 97% of this water is sea water．Man can only drink and use the other 3% fresh water that comes from rivers，lakes，under-ground and other places． And we cannot even use all of that，because some of this fresh water has been made dirty．At the moment，this small amount(数量) of fresh water is still enough for us． However，our need for water is getting greater and greater． Only if we take steps to solve this problem now，we can get away from a serious world water shortage later on． The people of the world cannot have an enjoyable life without enough clean water．On one hand we should stop wasting this little water of ours，on the other hand we should find ways to reuse it，but this has not been done widely．Today，in most large cities，water is used only once and it then returns to the sea or runs into underground places．lf we can make it clean again，it can be used once more just as if it were fresh from a spring．But even if large cities reuse its water，we still would not have enough in the future． Where．could we turn to next for water? To the ocean! How can we do to make use of this great a-mount of sea water? We can take the salt from the water to make it fresh．So if we take all these steps，we'll be in no danger of drying up!( )26． Why does the writer say that the world is thirsty for water?A． The amount of fresh water is really very small．B． The people of the world waste too much water．C． The people of the world have to drink a lot of water every day．D． There are too many people in the world needing water．
7． If you were in Sahara，you ________ the value of fresh water．A． will realizeB． realizedC． would realizeD． realize
Before starting a gasoline engine on a motorboat，you should make sure for safety that ______．A.The gasoline tank is fullB.The bilges，cabins，etc．are thoroughly ventilatedC.You have fresh water on boardD.Each of the above is followed
共用题干The Drink Your Body Needs MostI Our bodies are estimated to be about 60% to 70% water. Blood is mostly water,andour muscles,lungs,and brain all contain a lot of water. Water is needed to regulate bodytemperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxygen to our cells,removes waste,and protects our joints andorgans.2 We lose water through urination（排尿）,respiration（呼吸）,and by sweating. If youare very active,you lose more water than if you do not take much exercise.Symptoms ofmild dehydration（脱水）include chronic pains in joints and muscles, lower back pain, headaches, and constipation（便秘）.A strong smell to your urine, along with a yellowcolor indicates that you are not getting enough water. Thirst is an obvious sign ofdehydration and in fact,you need water long before you feel thirsty.3 A good rule of thumb（好的做法）is to take your bod犷weight in pounds and divide thatnumber in half. That gives you the number of ounces（盎司）of water per day that youneed.For example,if you weigh 160 pounds,you should drink at least 80 ounces of waterper day.If you exercise you should drink another 8-ounce glass of water for every 20minutes you are active.If you drink coffee or alcohol,you should add at least an equalamount of water. When you are traveling on an airplane,it is good to have 8 ounces ofwater for every hour you are on board the plane.4 It may be difficult to drink enough water on a busy day.Be sure you have water handy atall times by keeping a bottle for water with you when you are working,traveling,orexercising.If you get bored with plain water,add a bit of lemon for a touch of flavor.Thereare some brands of flavored water available,but some of them have sugar or artificial sweeteners that you don't need. The amount of water your body needs per day is closely related________.A:in your bodyB:without waterC:before longD:for a changeE:on a busy dayF:to your weight
共用题干The Drink Your Body Needs MostI Our bodies are estimated to be about 60% to 70% water. Blood is mostly water,andour muscles,lungs,and brain all contain a lot of water. Water is needed to regulate bodytemperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxygen to our cells,removes waste,and protects our joints andorgans.2 We lose water through urination（排尿）,respiration（呼吸）,and by sweating. If youare very active,you lose more water than if you do not take much exercise.Symptoms ofmild dehydration（脱水）include chronic pains in joints and muscles, lower back pain, headaches, and constipation（便秘）.A strong smell to your urine, along with a yellowcolor indicates that you are not getting enough water. Thirst is an obvious sign ofdehydration and in fact,you need water long before you feel thirsty.3 A good rule of thumb（好的做法）is to take your bod犷weight in pounds and divide thatnumber in half. That gives you the number of ounces（盎司）of water per day that youneed.For example,if you weigh 160 pounds,you should drink at least 80 ounces of waterper day.If you exercise you should drink another 8-ounce glass of water for every 20minutes you are active.If you drink coffee or alcohol,you should add at least an equalamount of water. When you are traveling on an airplane,it is good to have 8 ounces ofwater for every hour you are on board the plane.4 It may be difficult to drink enough water on a busy day.Be sure you have water handy atall times by keeping a bottle for water with you when you are working,traveling,orexercising.If you get bored with plain water,add a bit of lemon for a touch of flavor.Thereare some brands of flavored water available,but some of them have sugar or artificial sweeteners that you don't need. Paragraph 4__________A:Ounces of water needed per dayB:Importance of waterC:Composition of waterD:Signs of dehydrationE:Supply of waterF:Necessity for bringing a bottle for water with you
共用题干The Drink Your Body Needs MostI Our bodies are estimated to be about 60% to 70% water. Blood is mostly water,andour muscles,lungs,and brain all contain a lot of water. Water is needed to regulate bodytemperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxygen to our cells,removes waste,and protects our joints andorgans.2 We lose water through urination（排尿）,respiration（呼吸）,and by sweating. If youare very active,you lose more water than if you do not take much exercise.Symptoms ofmild dehydration（脱水）include chronic pains in joints and muscles, lower back pain, headaches, and constipation（便秘）.A strong smell to your urine, along with a yellowcolor indicates that you are not getting enough water. Thirst is an obvious sign ofdehydration and in fact,you need water long before you feel thirsty.3 A good rule of thumb（好的做法）is to take your bod犷weight in pounds and divide thatnumber in half. That gives you the number of ounces（盎司）of water per day that youneed.For example,if you weigh 160 pounds,you should drink at least 80 ounces of waterper day.If you exercise you should drink another 8-ounce glass of water for every 20minutes you are active.If you drink coffee or alcohol,you should add at least an equalamount of water. When you are traveling on an airplane,it is good to have 8 ounces ofwater for every hour you are on board the plane.4 It may be difficult to drink enough water on a busy day.Be sure you have water handy atall times by keeping a bottle for water with you when you are working,traveling,orexercising.If you get bored with plain water,add a bit of lemon for a touch of flavor.Thereare some brands of flavored water available,but some of them have sugar or artificial sweeteners that you don't need. Dehydration may occur if there is a shortage of water_________.A:in your bodyB:without waterC:before longD:for a changeE:on a busy dayF:to your weight
共用题干The Drink Your Body Needs MostI Our bodies are estimated to be about 60% to 70% water. Blood is mostly water,andour muscles,lungs,and brain all contain a lot of water. Water is needed to regulate bodytemperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxygen to our cells,removes waste,and protects our joints andorgans.2 We lose water through urination（排尿）,respiration（呼吸）,and by sweating. If youare very active,you lose more water than if you do not take much exercise.Symptoms ofmild dehydration（脱水）include chronic pains in joints and muscles, lower back pain, headaches, and constipation（便秘）.A strong smell to your urine, along with a yellowcolor indicates that you are not getting enough water. Thirst is an obvious sign ofdehydration and in fact,you need water long before you feel thirsty.3 A good rule of thumb（好的做法）is to take your bod犷weight in pounds and divide thatnumber in half. That gives you the number of ounces（盎司）of water per day that youneed.For example,if you weigh 160 pounds,you should drink at least 80 ounces of waterper day.If you exercise you should drink another 8-ounce glass of water for every 20minutes you are active.If you drink coffee or alcohol,you should add at least an equalamount of water. When you are traveling on an airplane,it is good to have 8 ounces ofwater for every hour you are on board the plane.4 It may be difficult to drink enough water on a busy day.Be sure you have water handy atall times by keeping a bottle for water with you when you are working,traveling,orexercising.If you get bored with plain water,add a bit of lemon for a touch of flavor.Thereare some brands of flavored water available,but some of them have sugar or artificial sweeteners that you don't need. One cannot live________A:in your bodyB:without waterC:before longD:for a changeE:on a busy dayF:to your weight
共用题干The Drink Your Body Needs Most1. Our bodies are estimated to be about 60%to 70%water. Blood is mostly water, and our mus- dles,lungs and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxy-gen to our cells,removes waste,and protects our joints and organs.2. We lose water through urination（排尿）, respiration（呼吸）, and by sweating. If you are very active,you lose more water than if you do not take much exercise.Symptoms of mild dehydration （脱水）include chronic pains in joints and muscles,lower back pain,headaches,and constipation（便秘）.A strong smell to your urine,along with a yellow color indicates that you are not getting enough water. Thirst is an obvious sign of dehydration and in fact,you need water long before you feel thirsty.3 .A good rule of thumb（好的做法）is to take your body weight in pounds and divide that num- her in half. That gives you the number of ounces（盎司）of water per day that you need.For ex-ample,if you weigh 160 pounds,you should drink at least 80 ounces of water per day.If you ex- ercise you should drink another 8-ounce glass of water for every 20 minutes you are active.If you drink coffee or alcohol,you should add at least an equal amount of water. When you are traveling on an airplane,it is good to have 8 ounces of water for every hour you are on board the plane.4 .It may be difficult to drink enough water on a busy day.Be sure you have water handy at all times by keeping a bottle for water with you when you are working,traveling,or exercising. If you get bored with plain water,add a bit of lemon for a touch of flavor. There are some brands of fla-vored water available,but some of them have sugar or artificial sweeteners that you don't need. The amount of water your body needs per day is related_________.A: in your bodyB: without waterC: before longD: for a changeE: on a busy dayF: to your weight
共用题干The Drink Your Body Needs Most1 Our bodies are estimated to be about 60% to 70% water.Blood is mostly water,and our muscles,lungs,and brain all contain a lot of water.Water is needed to regulate body temperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxygen to our cells,removes waste,and protects our joints and organs.2 We lose water through urination（排尿）,respiration（呼吸）,and by sweating. If you are very active,you lose more water than if you do not take much exercise.Symptoms of mild dehydration（脱水）include chronic pains in joints and muscles , lower back pain, headaches, and constipation（便秘）.A strong smell to your urine , along with a yellow color indicates that you are not getting enough water.Thirst is an obvious sign of dehydration and in fact,you need water long before you feel thirsty.3 A good rule of thumb（好的做法）is to take your body weight in pounds and divide that number in half. That gives you the number of ounces（盎司）of water per day that you need.For example,if you weigh 160 pounds,you should drink at least 80 ounces of water per day.If you exercise you should drink another 8-ounce glass of water for every 20 minutes you are active.If you drink coffee or alcohol,you should add at least an equal amount of water.When you are traveling on an airpiane,it is good to have 8 ounces of water for every hour you are on board the plane.4 It may be difficult to drink enough water on a busy day.Be sure you have water handy at all times by keeping a bottle for water with you when you are working,traveling,or exercising.If you get bored with plain water,add a bit of lemon for a touch of flavor.There are some brands of flavored water available,but some of them have sugar or artificialsweeteners that you don't need. One cannot live_______.A:in your bodyB:without waterC:before longD:for a changeE:on a busy dayF:to your weight
共用题干The Drink Your Body Needs Most1. Our bodies are estimated to be about 60%to 70%water. Blood is mostly water, and our mus- dles,lungs and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxy-gen to our cells,removes waste,and protects our joints and organs.2. We lose water through urination（排尿）, respiration（呼吸）, and by sweating. If you are very active,you lose more water than if you do not take much exercise.Symptoms of mild dehydration （脱水）include chronic pains in joints and muscles,lower back pain,headaches,and constipation（便秘）.A strong smell to your urine,along with a yellow color indicates that you are not getting enough water. Thirst is an obvious sign of dehydration and in fact,you need water long before you feel thirsty.3 .A good rule of thumb（好的做法）is to take your body weight in pounds and divide that num- her in half. That gives you the number of ounces（盎司）of water per day that you need.For ex-ample,if you weigh 160 pounds,you should drink at least 80 ounces of water per day.If you ex- ercise you should drink another 8-ounce glass of water for every 20 minutes you are active.If you drink coffee or alcohol,you should add at least an equal amount of water. When you are traveling on an airplane,it is good to have 8 ounces of water for every hour you are on board the plane.4 .It may be difficult to drink enough water on a busy day.Be sure you have water handy at all times by keeping a bottle for water with you when you are working,traveling,or exercising. If you get bored with plain water,add a bit of lemon for a touch of flavor. There are some brands of fla-vored water available,but some of them have sugar or artificial sweeteners that you don't need. Paragraph 1________A: Ounces of water needed per dayB:.Importance of waterC: Composition of waterD: Signs of dehydrationE: Supply of waterF: Necessity for bringing a bottle for water
共用题干The Drink Your Body Needs Most1 Our bodies are estimated to be about 60% to 70% water.Blood is mostly water,and our muscles,lungs,and brain all contain a lot of water.Water is needed to regulate body temperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxygen to our cells,removes waste,and protects our joints and organs.2 We lose water through urination（排尿）,respiration（呼吸）,and by sweating. If you are very active,you lose more water than if you do not take much exercise.Symptoms of mild dehydration（脱水）include chronic pains in joints and muscles , lower back pain, headaches, and constipation（便秘）.A strong smell to your urine , along with a yellow color indicates that you are not getting enough water.Thirst is an obvious sign of dehydration and in fact,you need water long before you feel thirsty.3 A good rule of thumb（好的做法）is to take your body weight in pounds and divide that number in half. That gives you the number of ounces（盎司）of water per day that you need.For example,if you weigh 160 pounds,you should drink at least 80 ounces of water per day.If you exercise you should drink another 8-ounce glass of water for every 20 minutes you are active.If you drink coffee or alcohol,you should add at least an equal amount of water.When you are traveling on an airpiane,it is good to have 8 ounces of water for every hour you are on board the plane.4 It may be difficult to drink enough water on a busy day.Be sure you have water handy at all times by keeping a bottle for water with you when you are working,traveling,or exercising.If you get bored with plain water,add a bit of lemon for a touch of flavor.There are some brands of flavored water available,but some of them have sugar or artificialsweeteners that you don't need. Paragraph 3________A:Ounces of water needed per dayB:Importance of waterC:Composition of waterD:Signs of dehydrationE:Supply of waterF:Necessity for bringing a bottle for water with you
共用题干The Drink Your Body Needs Most1. Our bodies are estimated to be about 60%to 70%water. Blood is mostly water, and our mus- dles,lungs and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxy-gen to our cells,removes waste,and protects our joints and organs.2. We lose water through urination（排尿）, respiration（呼吸）, and by sweating. If you are very active,you lose more water than if you do not take much exercise.Symptoms of mild dehydration （脱水）include chronic pains in joints and muscles,lower back pain,headaches,and constipation（便秘）.A strong smell to your urine,along with a yellow color indicates that you are not getting enough water. Thirst is an obvious sign of dehydration and in fact,you need water long before you feel thirsty.3 .A good rule of thumb（好的做法）is to take your body weight in pounds and divide that num- her in half. That gives you the number of ounces（盎司）of water per day that you need.For ex-ample,if you weigh 160 pounds,you should drink at least 80 ounces of water per day.If you ex- ercise you should drink another 8-ounce glass of water for every 20 minutes you are active.If you drink coffee or alcohol,you should add at least an equal amount of water. When you are traveling on an airplane,it is good to have 8 ounces of water for every hour you are on board the plane.4 .It may be difficult to drink enough water on a busy day.Be sure you have water handy at all times by keeping a bottle for water with you when you are working,traveling,or exercising. If you get bored with plain water,add a bit of lemon for a touch of flavor. There are some brands of fla-vored water available,but some of them have sugar or artificial sweeteners that you don't need. One cannot live________.A: in your bodyB: without waterC: before longD: for a changeE: on a busy dayF: to your weight
单选题Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.Athe gasoline tank is fullBthe bilges，cabins，etc. are thoroughly ventilatedCyou have fresh water on boardDEach of the above is followed
单选题Immediately after starting a diesel engine, normal raw water and jacket water pressure are indicatedHowever, the jacket water temperature continues to rise, if there is no change in the sea temperature, you should suspect（）Aoverloading in all cylindersBa jammed three-way thermostatic valveCchromate PH too lowDa high level in the surge tank
单选题If a small electric motor is immersed in salt water it should be （） (1) washed in fresh water (2) dried in an ovenA(1) onlyB(2) onlyCboth (1) and (2)Dneither (1) or (2)
单选题Once you have established the daily ration of drinking water in a survival situation，how should you drink it?（）ASmall sips at regular intervals during the dayBThe complete daily ration at one time during the dayCOne-third the daily ration three times dailyDSmall sips only after sunset
单选题In a diesel engine jacket water cooler, with seawater cooling the fresh water, the（）Asea water temperature must never be warmer than 40℃Bjacket water pressure should always be greater than the sea water pressureCjacket water temperature must always be less than 60℃Djacket water pressure must always be less than the sea water pressure
单选题To clean a dirty fiber towing hawser used in ocean towing，you should（）.Ause lye or other mild detergentBwash it with fresh water，dry and store itCwash it with salt waterDuse cleaning fluid on nylon，dacron and other synthetic lines
单选题To repair a small electrical motor that has been submerged in saltwater, you should （）.Awash it with fresh water and apply an external source of heatBrenew the windingsCsend it ashore to an approved service facilityDrinse all electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the motor with compressed air
单选题Before marine sewage treatment plant works （） should be filled with fresh water.Adeposition chamberBoxidation poolCdisinfection chamberDall chamber
单选题Allowance for fresh water refers to（）.Athe provision to be provided when the vessel sails in fresh water areaBthe fresh water to be carried by a vesselCthe allowance of fresh water for each crew member when in distress at seaDthe amount of free board decreased when sailing in fresh water area
单选题Which statement concerning the collection of fresh water is FALSE?（）AFresh water may be obtained from fishBLifeboat covers or canopies should be washed with rain before drinking water is collectedCFresh water may be collected from condensation inside the liferaftDSeawater should never be consumed
单选题Fire hose should be washed with（）.Asalt water and a wire brushBcaustic soapCmild soap and fresh waterDa holystone
单选题Prior to getting underway in fresh or brackish water，the Master must（）.Alog the density of the waterBsecure all overboard dischargesCtake on fresh water ballastDclean the sides with fresh water