Which result is not caused by viscous damping increment?
A、increase the steady state error
B、slow the response
C、attenuate the amplitude of vibration
D、increase the natural frequency
A、increase the steady state error
B、slow the response
C、attenuate the amplitude of vibration
D、increase the natural frequency
第1题
A.Methods like evading income tax or providing more chances for job training might help reduce the existing inequality.
B.The Democratic Party is spreading propaganda that they could regain the lost paradise.
C.Americans once had a period of time when they could obtain middle-class status easily.
D.Income inequality results from the fact that society needs more and more workers who have a high skill and a good education.
第2题
A.Narcissism may result in bad consequences.
B.College students are active to participate in volunteer work.
C.Some people doubt whether there are remedies to counter the narcissism upsurge.
D.Some college students are overly engaged in self-promotion.
第3题
A.Predominant
B.Preliminary
C.Preferable
D.Precious
第4题
A.Western diets are healthier than non-Western diets.
B.Western diets result in higher blood cholesterol levels than do non-Western diets.
C.High blood cholesterol levels preclude the weakening of artery walls.
D.Cerebral hemorrhages are more dangerous than strokes caused by blood clots.
E.People who have low blood pressure are at increased risk of cerebral hemorrhage.
第5题
A.Muscle-building exercise results in weight-gaining,but that is not a problem to worry about.
B.Muscle helps one keep fit.
C.Improved muscle strength can lead to a higher quality of life.
D.Weight-training helps shape up you body.
第6题
It was same story all over New Jersey, in bars, bowling alleys, diners, and places t0 live. I was always being forced to leave, silently, or with mutual imprecations. I very shortly became notorious and children giggled behind me when I passed and their elders whispered or shouted--they really believed that I was mad. And it did begin to work on my mind, of course.
I began to be afraid to go anywhere and to compensate for this I went places to which I really should not have gone and where, God knows, I had no desire to be. My reputation in town naturally enhanced my reputation at work and my working day became one long series of acrobatics designed to keep me out of trouble. I cannot say that these acrobatics night, with but one aim: to eject me. I was fired once, and contrived, with the aid of a friend from New York, to get back on the payroll; was fired again, and bounced back again. It took a while to fire me for the third time, but the third time took me. There were no loopholes anywhere. There was not even any way of getting back inside the gates.
That year in New Jersey lives in my mind as though it were the year during which, having an unsuspected predilection for it, I first contracted some dread, chronic disease, the unfailing symptom of which is a kind of blind fever, a pounding in the skull and fire in the bowels. Once this disease is contracted, one can never be really carefree again, for the fever, without an instant’s warning, can recur at any moment. It can wreck more important race relations. There is not a Negro alive who does not have this rage in his blood--one has the choice, merely, of living with it consciously or surrendering to it. As for me, this fever has recurred in me, and does, and will until the day I die.
My last night in New Jersey, a white friend from New York took me to the nearest big town, Trenton, to go to the movies and have a few drinks. As it turned out, he also saved me from, at the very least, a violent whipping. Almost every detail of that night stands out very clearly in my memory. I even remember the name of the movie we saw because its title impressed me as being so pertly ironical. It was a movie abou
A.derogatory
B.ironical
C.appreciative
D.neutral
第7题
A、The background and problem necessitating the proposal
B、Problems that may result from implementation
C、Costs of implementing the proposal
D、Persuasive techniques
第8题
A.Resolving your conflicts.
B.Not having to go to court.
C.Easing on your emotions.
D.Costing you less money.
第9题
What should be blamed for the crash?
A.Terrorist attacks.
B.U.S. sanctions.
C.Lack of spare parts.
D.Lack of regular maintenance.
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