问题:单选题How does the engine adjust itself to different formulas of fuel?A By piping in more oxygen for ethanol.B By sensing the amount of oxygen in a car’s exhaust.C By burning in a less-than-optimal mode.D By stopping and checking the fuel tank....
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问题:单选题According to the speaker, who are working in the industrial estates?A People from the suburbs.B People from other country towns.C Volunteers.D Local inhabitants....
问题:判断题The new generation of drugs stop tumours and kill all rapidly proliferating cells, but they also cause side effects.A 对B 错...
问题:判断题Migratory birds may rely on the earth’s magnetic field for guidance while traveling during cloudy days.A 对B 错...
问题:单选题Why is a “selling panic” much less likely in the housing market?A Because most houses are primary residences.B Because people have locked in low mortgaged rates.C Because people could only qualify for smaller mortgages.D Because people don’t believe ho...
问题:判断题A new idea is that researchers need to combine several drugs into a therapy so that several mutations can be treated simultaneously.A 对B 错...
问题:单选题Brazilian motorists today ______.A can buy fuel very cheaply at their local garage.B are running their cars on ethanol because they can’t afford the petrol.C are not allowed to buy alcohol at their local garage.D are using ethanol as a substitute for p...
问题:判断题Mr. Mubarak has recently hand-picked his successor, whom he found very suitable.A 对B 错...
问题:Only by using a large amount of medications prescribed by do...
问题:判断题European and Japanese regulators do not wish to tell the public about their fast screening methods for sick animals.A 对B 错...
问题:单选题Why does life on earth depend much on the oceans?A Sea plants produce most of the oxygen in the atmosphere.B Carbon dioxide is converted into oxygen in oceans.C The oceans provide an invaluable food resource.D Productivity of fisheries can feed 80 mill...
问题:单选题The Standing Committee ______.A will review and discuss scientific guidance for food and fiber production.B will respond to all kinds of concerns about the environment.C will help identify emerging issues in the broad areas of agricultural biotechnolog...
问题:What is the main idea of the passage?...
问题:Several big media operations in the U.S. stopped broadcastin...
问题:单选题How was the British architecture style characterized in the early 20th century?A It followed the mainstream trends in the architecture around the world.B It developed a style of its own, thus distinguishing itself from architecture elsewhere.C There wa...
问题:Freshwater fish stocks are vulnerable or endangered because...
问题:Which description is NOT mentioned by Blackstone about homos...
问题:Practice 6 Listen to the following passage. Write in Englis...
问题:Where did Columbus first set foot on the New Continent?...
问题:According to the speaker, what mistakes do many drivers make...