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Certain kinds of wind can do harm to human health.()
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A project can best be defined as:A.Series of non-related activities designed to accomplish single and multiple objectives.B.Coordinated effort of related activities designed to accomplish a goal without a well-established end point.C.Cradle-to-grave activities which must be accomplished in less than one year and consumes human and non-human resources.D.Any undertaking with a definable time frame, well-defined objectives, and consumes both human and non-human resources with certain constraints.E.All of the above.
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A good habit can make our mental health in with physical health.
A.concernB.connectionC.compareD.tune
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What can we infer from the last paragraph?[A] Monkeys can be trained to develop social emotions.[B] Human indignation evolved from an uncertain source.[C] Animals usually show their feelings openly as humans do.[D] Cooperation among monkeys remains stable only in the wild.
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Many lifestyle. patterns do such great harm to health that they actually speed upweakening at the human body.A．a; /B．/; theC．a; theD．/; /
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It can be inferred from the text that.A．we can get enough resources without rainforestsB．there is great medicine potential in rainforestsC．we will grow fewer kinds of crops in the gained landD．the level of annual rainfall affects wind patterns
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"Can you ()with all the colors of the wind? Can you paint with all the colors of the wind?"A、seeB、paintC、writeD、draw
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Why do the American doctors think of using laser light to treat heart disease?A．Beeause laser light is quite powerful．B．Because laser light is penetrating．C．Because laser light can destroy the blocking materials in human’s artery．D．Because laser light can travel through the human body．
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Many lifestyle. patterns do such great harm to health that they actually speed up weakening of the human body.A．a; /B．/; theC．a; theD．/; /
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The velocity of the apparent wind can be more than the true wind，and come from the same direction，if certain conditions are present．One condition is that the ______．A.Ship's speed must be less than the true wind velocityB.True wind must be from dead asternC.True wind velocity must be faster than the ship's speedD.True wind must be from dead ahead
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Apparent wind speed blowing across a vessel under tow can be measured by a(n)______．A.barometerB.wind vaneC.anemometerD.Thermometer
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（ ）makes computers able to do jobs which till now, only human brains can do.
A.Artificial intelligence
B.Big data
C.Cloud computing
D.Internet of things
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共用题干
第二篇The Magic of SoundMusic is one of the most beautiful forms of artistic expressions ever invented.In movies and plays, music has an added function:it not only moves people but also can shock people.Our eardrums can withstand sound within 20 to 80 decibels（分贝）.Once sound exceeds this limit , even beautiful music will become ear-splitting noise and harm health.A strong blast（响声）of high sound can twist and break a solid iron sheet.High sound of 150 decibels can kill a healthy rat.In movies,sometimes the hero can produce a sound that ordinary people can't hear and only those whohave the same ability can feel.In nature,there is actually sound that is beyond our hearing.In physics,the sound that exceeds 20,000Hz is called ultrasonic（超音波的）.Dolphins, whales and bats can make such high-frequency sound.It does no harm to health.Sound less than 20Hz is called infrasonic（次声）waves.When we move, the air will vibrate.The vibration of air can produce infrasonic waves.As the frequency of infrasonic waves is close to that of people's internal organs, infrasonic wave may cause resonance（共振）in human bodies.As a result,people's vision may weaken and internal organs may rupture（断裂）.However,whether an infrasonic wave can be used as a weapon depends on its intensity.If its intensity is very low,it won't damage internal organs or a person's health.If the intensity of infrasonic wave exceeds 160 decibels,it is extremely harmful.When wind blows at a force of 3 or 4 over the sea,it will produce infrasonic waves of several decibels.Only typhoons can produce infrasonic waves of over 100 decibels.At present,scientists can only produce infrasonic weapons in the lab with the help of advanced scientific tools and powerful electric power.An ultrasonic sound______.A:is very loudB:does harm to people's healthC:cannot be heard by peopleD:is produced by the hero in movies
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The semantic components of the word “gentleman” can be expressed as（）.A+animate，+male，+human，-adultB+animate，+male，+human，+adultC+animate，-male，+human，-adultD+animate，-male，+human，+adult
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Not always（）they want (to)A、people can do whatB、can people do whatC、people can not do whatD、can‘t people do what
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The semantic components of the word “gentleman” can be expressed as（）.A、+animate，+male，+human，+adultB、+animate，+male，+human，-adultC、+animate，-male，+human，-adultD、+animate，-male，+human，+adult
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It is desirable that a certain method within a certain class can only be accessed by classes that are defined within the same package as the class of the method. How can such restrictions be enforced？（） A、Mark the method with the keyword public.B、Mark the method with the keyword protected.C、Mark the method with the keyword private.D、Mark the method with the keyword package.E、Do not mark the method with any accessibility modifiers.
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单选题According to some scientists, the computer will do much harm to people’s health as smoking and drugs do.A
does much harm...smokingB
will do as much harm...cigarettesC
will do so much harm...smokingD
does as much harm...cigarettes
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单选题It can be inferred from the passage that the pupils __________.A
usually study a certain subject in greater details at home than at schoolB
usually do not study a certain subject at homeC
study the subjects only at schoolD
study a subject more deeply at school than at home
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单选题Besides reducing human labor, robots can also ______.A
make a few decisions for themselvesB
deal with some errors with human interventionC
improve factory environmentsD
cultivate human creativity
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单选题Which of the following can be inferred from the passage, about the adherents of “certain theories of nonrepresentational art”?A
They consider the use of illusion to be inappropriate in contemporary art.B
They do not agree the marks on a flat surface can ever satisfactorily convey the illusion of three-dimensional space.C
They do not discuss important works of art created in the past.D
They do not think that the representation of nature was ever the primary goal of past painters.
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单选题A
Toxoplasma gondii causes people strange and deadly diseases.B
With certain infection the infectious disease cannot be cured completely.C
Human beings infected by toxoplasma gondii will have permanent brain damage.D
Toxoplasma gondii is harmful to human beings, but it does no harm to mice.
考题
问答题Firstly, the understanding of certain backgrounds is of great significance to the cross-cultural communication. There are two kinds of communication between human beings: one is extroverted, the other is introverted. Like the computer programs, the extroverted communication processes according to the well-edited programs, or it can’t work. On the contrary, communication with the introverts is like that between the twin brothers or sisters, because they have tacit understanding and only need simple sentences or phrases in their conversations.
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