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【简答题】
In many parts of the world, cars play an important role in daily life and many societies would not exist without them. So the idea that in 20 years’ time, no one will own cars may be hard to believe. But this is the prediction made by a team of transport researchers who are taken seriously, not only by government but also by car manufacturers. The Human Science and Advanced Technology Institute at Loughborough in the UK is part of an international research program. The team there believes that by 2020 all cars will be computerized, which will mean much saving, no accidents and better use of roads. The super-intelligent car of the 21 st century will drive itself, and it will not be owned by one individual. Instead, we will have a choice of cars and change them as frequently as we change our clothing. According to Dr. David Davis , who leads the research team, these predictions are based on the rising cost of the car culture, which has blocked up our cities, polluted our air , and caused more deaths than both world wars put together. Davis says, cars will be fitted with some intelligent devices to regulate the distance between one car and another. The car will automatically speed up, or slow down, to match the speed of the car in front. Computers are much safer drivers than people, so cars in a road train will be able to drive much closer together than cars driven by people. By 2010, Dr. David Davis believes, car technology will give motorists a clear view of the road, whatever the weather conditions, by projecting an image of the road ahead on to the car’s windscreen. And by 2020, cars will travel in convoy , linked to each other electronically. Cars will be connected by an electronic tow bar to the car in front to form “road–trains”. “The front vehicle in such a train burns the normal amount.” says Davis. “But all the others in the train would burn about ten percent of the normal amount, and so produce about ten percent of the pollution.” 小题1:We know from the passage that governments and car manufacturers _______ A.do not believe the prediction that no one will own cars by 2020 B.are devoted to the technological revolution in car industry C.consider the predictions seriously D.have put the super-intelligent car into mass production 小题2:Which of the following will be the characteristic of the cars of 2020? The car will speed up out of control. We will own as many cars as we want. All cars will be driven by computers. Cars will produce more pollution than present ones. 小题3:The leader of the research team believes that the present car culture should change because_________. cars play a very important role in daily life many societies would stop functioning without cars cars should not be owned by one individual it causes many deaths to human society 小题4:The expression closest in meaning to the phrase “in convoy” in the last paragraph is________. A.in line B.sidelong C.side by side D.shoulder to shoulder 小题5:What will happen if cars are joined to each other electronically in 2020? Motorists will get a clear view of the road. The weather condition will not have effect on motorists. There will be less pollution caused by car. All trains will burn less fuel than present.
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【单选题】对于麻疹病人应采取的隔离期是
A.
发热后5天
B.
热退后1周
C.
疹退后10天
D.
疹退后5天
E.
出疹后5天,有合并症隔离到出疹后10天
【单选题】对于麻疹病人应采取的隔离期是( )
A.
发热后5天
B.
热退后一周
C.
疹退后10天
D.
疹退后5天
E.
出疹后5天,有合并症隔离到出疹后10天
【单选题】如图所示小磁针N极将( )。
A.
向外偏转
B.
向里偏转
C.
不偏转
D.
偏转方向不定
【单选题】反射活动完成的时程主要取决于
A.
刺激的强度
B.
感受器的敏感性
C.
传入与传出纤维传导兴奋的速度
D.
参与反射的突触数目
E.
效应器的敏感性
【单选题】反射活动完成的时程主要取决于
A.
刺激的强度
B.
感受器的敏感性
C.
传入与传出纤维传导兴奋的速度
D.
参与反射的突触数目
【简答题】系统寿命周期的发展期包括____和____两个过程
【单选题】如图所示小磁针N极将( )。
A.
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B.
向外偏转
C.
向里偏转
D.
不偏转
E.
偏转方向不定
【单选题】关于隔离,下列说法不正确的是
A.
麻疹、流感两种传染病需要采取的是呼吸道隔离
B.
保护性隔离是指对严重的传染病患者进行的隔离
C.
甲肝患者采取的是消化道隔离
D.
不同类型的传染病患者应分别隔离
E.
患者隔离期间应避免与家人朋友等人接触
【单选题】Some insects ______ the color of their surroundings to protect themselves.
A.
take in
B.
take off
C.
take on
D.
take out
【简答题】系统寿命周期的发展期包括()和()两个过程。(答案用空格间隔)
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