单选题It is during （） that work energy is being put into the engine; during the other 3 strokes of the piston, the engine is having to do the work.Athe suction strokeBthe compression strokeCthe expansion strokeDthe exhaust stroke
单选题
It is during （） that work energy is being put into the engine; during the other 3 strokes of the piston, the engine is having to do the work.
A
the suction stroke
B
the compression stroke
C
the expansion stroke
D
the exhaust stroke
参考解析
解析：
暂无解析
相关考题：
During the war everyone _______ their political differences _______ worked together. A. put upB. put asideC. put offD. put on
In Britain we try not to put our hands _____ during a meal .A. on the deskB. in the bedC. on the tableD. in the pocket
As long as I work hard, my dream of()to Harvard University will come true. A、being acceptedB、being receivedC、being admiredD、being admitted
The project requires more labor than ____ because it is extremely difficult. A.has been putB.have been putC.being put inD.to.be put in
The project requires more labor than ________.[A] has been put in[B] have been put in[C] being put in[D] to be put in
The students’ phone offers its service_______A．every morning during the work-daysB．every morning during the work—endsC．four mornings a weekD．every other morning except Sunday
Techniques to employ the energy of the sun are being developed.A:convert B:storeC:use D:receive
共用题干Energy CycleDo you find getting up in the morning so difficult that it's painful?This might be called laziness, but Dr. Kleitman has a new explanation.He has proved that everyone has a daily energy cycle.During the hours when you labor through your work you may say that you are"hot".That's true.The time of day when you feel most energetic is when your cycle of body temperature is at this peak.For some people the peak comes during the morning. For others it comes in the afternoon or evening. No one has discovered why this is so,but it leads to such familiar words as:"Get up, John!You'll be late for work again!"The possible explanation to the trouble is he is at his tempera-ture-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can't change your energy cycle,but you can learn to make your life fit it better. Habit can help,Dr. Kleitman believes.Maybe you're sleepy in the evening but feel you must stay up late anyway.Counteract your cycle to some extent by habitually staying up later than you want to.If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam and work better at your low point.Get off to a slow start,which saves your energy.Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before.Whenever possible,do routine work in the afternoon and save tasks requiring more energy for your sharper hours.Energy cycle may be inherited from your parents.A:Right B:Wrong C:Not mentioned
共用题干Energy CycleDo you find getting up in the morning so difficult that it's painful?This might be called laziness, but Dr. Kleitman has a new explanation.He has proved that everyone has a daily energy cycle.During the hours when you labor through your work you may say that you are"hot".That's true.The time of day when you feel most energetic is when your cycle of body temperature is at this peak.For some people the peak comes during the morning. For others it comes in the afternoon or evening. No one has discovered why this is so,but it leads to such familiar words as:"Get up, John!You'll be late for work again!"The possible explanation to the trouble is he is at his tempera-ture-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can't change your energy cycle,but you can learn to make your life fit it better. Habit can help,Dr. Kleitman believes.Maybe you're sleepy in the evening but feel you must stay up late anyway.Counteract your cycle to some extent by habitually staying up later than you want to.If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam and work better at your low point.Get off to a slow start,which saves your energy.Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before.Whenever possible,do routine work in the afternoon and save tasks requiring more energy for your sharper hours.if you rise earlier than usual,you will be more efficient at your low point in the morning.A:Right B:Wrong C:Not mentioned
5 Ways to Focus Your Energy During a Work Crunch Work invariably ebbs and flows,cycling between steady states,where we feel more in control of the pace and workload,and peak periods,where the difficult work situation hits us hard.Unexpected setbacks or even vacations and holidays can create disorder and tension.Maintaining focus and managing energy levels become critical as tasks pile onto an already full load.When you're in your next work crunch,there are a few things you can do to focus and manage your energy more productively:41.When an acute period hits,it's easy to resist the fact that it's happening.We wish for things to be like they were last month,or we long for the pace we had during vacation.By not being present to the here and now,we drain our energy by pondering on the situation.In fact,physicists define resistance as"the degree to which a substance or device opposes the passage of an electrical current,causing energy loss."In the case of a diffcult work situation,the more you oppose what's happening,the more energy you lose.Acceptance does not mean giving in.On the contrary,it means acknowledging the reality of the situation with awareness so that you can take clear action.42.Acceptance is particularly difficult given the underlying emotions that an acute work crunch can bring.Negative thoughts often predominate.David Rock,director of the NeuroLeadership Institute,suggests that,rather than suppressing or denying an emotion,an effective cognitive technique is labeling,whereby you take a situation and put a label on your emotions.By assigning a word to what's happening,such as"pressure","guilt",or"worry",Rock's research shows.you can reduce the arousal of the limbic brain's fight-or-flight system and instead activate the prefrontal cortex,which is responsible for our executive funcLioning sk川s.43.A research out of the Universiry of Pittsburgh shows that anxiety directly impacts our cognitive functioning,especially those areas responsible for making souncl decisions.Don't fall into a victim mentality.believing there are no choices or that you don't have control.Instead,bring greater vigilance to assessing your priorities,making tough trade-offs,and incorporating self-care where you can.44.Other people can be a real energy drain-or gain-during work crunches and set-backs.Pause and consider how you can renegotiate deadlines,set tighter bounciaries,or ask for more support during this time.Many of us pride ourselves on not bothering others and being self-reliant.The.se are great qualities,but there are times when we need to ask for help.Ask your loved ones for more help on the home front.Share the weight of the accountability for projects with your colleagues by delegating or teaming up,versus doing it all on your own.45.Probably the toughest thing of all during a work crunch or setback is how easy it is to beat yourself up,especially when you aren't hitting your high standards for work,Annie McKee,author of the forthcoming book Howio Be Happy at,Work,says this:"If you really want to deal with stress,you've got to stop trying to be a hero and start caring for and about yourself."45选？A.Communicate with your colleagues and loved onesB.Stop thinking any unrealistic thingsC.Accept the situationD.Preserve your sense of choiceE.Control your negative emotionsF.Observe and label your underlying emotionsG.Practice self-compassion
共用题干Energy CycleDo you find getting up in the morning so difficult that it's painful?This might be called laziness,but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle.During the hours when you labor through your work you may say that you're“hot”.That's true .The time of day when you feel most energetic is when your cycle of body temperature is at its peak .For some people the peak comes during the morning. For others it comes in the afternoon or evening.No one has discovered why this is so,but it leads to such familiar monologues as:“Get up,John!You'll be late for work again!”The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can't change your energy cycle,but you can learn to make your life fit to it better. Habit can help,Dr. Kleitman believes. Maybe you're sleepy in the evening but you must stay up late anyway .Counteract your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam and work better at your low point.Get off to a slow start which saves your energy .Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the trouble of searching for clean clothes by laying them out the night before .Whenever possible,do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours. Which of the following statements is NOT TRUE?A: Getting off to work with a minimum effort helps save one's energy.B: Dr. Kleitman explains why people reach their peak at different hours of day.C: Habit helps a person adapt to his own energy cycle.D: Children have energy cycles,too.
共用题干Energy CycleDo you find getting up in the morning so difficult that it's painful?This might be called laziness,but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle.During the hours when you labor through your work you may say that you're“hot”.That's true .The time of day when you feel most energetic is when your cycle of body temperature is at its peak .For some people the peak comes during the morning. For others it comes in the afternoon or evening.No one has discovered why this is so,but it leads to such familiar monologues as:“Get up,John!You'll be late for work again!”The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can't change your energy cycle,but you can learn to make your life fit to it better. Habit can help,Dr. Kleitman believes. Maybe you're sleepy in the evening but you must stay up late anyway .Counteract your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam and work better at your low point.Get off to a slow start which saves your energy .Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the trouble of searching for clean clothes by laying them out the night before .Whenever possible,do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours. If one wants to work more efficiently at his low point in the morning,he should_______.A: change his energy cycleB: overcome his lazinessC:get up earlier than usualD:go to bed earlier
共用题干Energy CycleDo you find getting up in the morning so difficult that it's painful?This might be called laziness,but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle.During the hours when you labor through your work you may say that you're“hot”.That's true .The time of day when you feel most energetic is when your cycle of body temperature is at its peak .For some people the peak comes during the morning. For others it comes in the afternoon or evening.No one has discovered why this is so,but it leads to such familiar monologues as:“Get up,John!You'll be late for work again!”The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can't change your energy cycle,but you can learn to make your life fit to it better. Habit can help,Dr. Kleitman believes. Maybe you're sleepy in the evening but you must stay up late anyway .Counteract your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam and work better at your low point.Get off to a slow start which saves your energy .Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the trouble of searching for clean clothes by laying them out the night before .Whenever possible,do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours. Which of the following may lead to family quarrels according to the passage?A: Unawareness of energy cycles.B:Familiar monologues.C: A change in a family member's energy cycle.D: Attempts to work more efficiently during the cycle of other family members.
共用题干Energy CycleDo you find getting up in the morning so difficult that it's painful?This might be called laziness,but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle.During the hours when you labor through your work you may say that you're“hot”.That's true .The time of day when you feel most energetic is when your cycle of body temperature is at its peak .For some people the peak comes during the morning. For others it comes in the afternoon or evening.No one has discovered why this is so,but it leads to such familiar monologues as:“Get up,John!You'll be late for work again!”The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can't change your energy cycle,but you can learn to make your life fit to it better. Habit can help,Dr. Kleitman believes. Maybe you're sleepy in the evening but you must stay up late anyway .Counteract your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam and work better at your low point.Get off to a slow start which saves your energy .Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the trouble of searching for clean clothes by laying them out the night before .Whenever possible,do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.If a person finds getting up early a problem,most probably______.A: he is a lazy personB: he refuses to follow his own cycleC: he is not sure when his energy is lowD: he is at his peak in the afternoon or evening
共用题干Energy CycleDo you find getting up in the morning so difficult that it's painful?This might be called laziness,but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle.During the hours when you labor through your work you may say that you're“hot”.That's true .The time of day when you feel most energetic is when your cycle of body temperature is at its peak .For some people the peak comes during the morning. For others it comes in the afternoon or evening.No one has discovered why this is so,but it leads to such familiar monologues as:“Get up,John!You'll be late for work again!”The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean,and which cycle each member of the family has.You can't change your energy cycle,but you can learn to make your life fit to it better. Habit can help,Dr. Kleitman believes. Maybe you're sleepy in the evening but you must stay up late anyway .Counteract your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day,rise before your usual hour. This won't change your cycle,but you'll get up steam and work better at your low point.Get off to a slow start which saves your energy .Get up with a leisurely yawn and stretch.Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the trouble of searching for clean clothes by laying them out the night before .Whenever possible,do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours. You are advised to rise with a yawn and stretch because it will_______.A: help to keep your energy for the day's workB: help you to control your temper early in the dayC: enable you to concentrate on your routine workD: keep your energy cycle under control all day
The unlashing work must be finished before （）.A、dischargedB、being dischargedC、dischargingD、discharges
They’re doing some very innovative work in solar energy.“innovative” here means something out of date.
Which of the following is the MOST important reason for referencing the HCL？（）A、 To ensure that all hardware being used has previously been testedB、 To ensure that all hardware being used has the latest firmwareC、 To ensure that all hardware being used is the most energy efficientD、 To ensure that all hardware being used can be upgraded in the future
单选题（）the compression ratio, （） the proportion of the heat energy of the combustion turned into useful work at the crankshaft, other things being equal.AThe high；the largeBThe higher；the largerCThe lower；the largerDThe low ；the large
单选题What is true about employees paid wages by the hour?AThey will get a week of paid vacation.BThey will not work during the month of March.CThey will help with the maintenance work.DThey will not receive payment during the closure.
单选题The centrifugal pump component responsible for converting the mechanical energy of the liquid being pumped, to that of kinetic energy is the （）.Aelectric motorBvoluteCimpellerDdiffusion nozzle
单选题The basic function of the centrifugal pump impeller is to （）.Adirectly increase the pressure of the liquid being pumpedBdirectly increase the velocity of the liquid being pumpedCconvert the potential energy of the liquid to kinetic energyDseparate air from the liquid being pumped
单选题Which is NOT a safety precaution to be observed during the loading of LFG?（）AReport any leakage of cargoBMake sure the rake ends of the barge are completely dry and moppedCAscertain that the hoses to be used are in good orderDBe on the lookout for work being accomplished ashore in the vicinity of the barges
单选题It is during （） that work energy is being put into the engine; during the other 3 strokes of the piston, the engine is having to do the work.Athe suction strokeBthe compression strokeCthe expansion strokeDthe exhaust stroke
单选题Which of the following is the MOST important reason for referencing the HCL？（）A To ensure that all hardware being used has previously been testedB To ensure that all hardware being used has the latest firmwareC To ensure that all hardware being used is the most energy efficientD To ensure that all hardware being used can be upgraded in the future