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问题：The Building of the PyramidsThe oldest stone buildings in the world are the pyramids.【46】 There are over eighty of them scattered along the banks of the Nile, some of which are different in shape from the true pyramids. The most famous of these are the "S...
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问题：Paragraph 6 ______...
问题：John is collaborating with mary in writing an article.A．cooperatingB．competingC．combiningD．arguing...
问题：Sperm whales can produce stronger ultrasonic waves to kill their prey than dolphins.A．RightB．WrongC．Not mentioned...
问题：What will be the benefit if the research on smart windows turns out to be successful, according to the last paragraph?A．The buildings will look different.B．Windows can be as large as you want.C．We may not need air conditioners any more.D．They are less exp...
问题：In Britain and many other countries appraisal is now a tool of management.A．evaluationB．efficiencyC．productionD．publicity...
问题：Many scientists have been probing psychological problems.A．solvingB．exploringC．settlingD．handling...
问题：The energy stored in coal ______....
问题：The river widens considerably as it begins to turn west.A．twistsB．stretchesC．broadensD．bends...
问题：To make electrochromic windows change color, what is applied to the window glass?A．Electricity.B．Tungsten oxide.C．A battery.D．A voltage....
问题：But in the end he approved of our proposal.A．undoubtedlyB．certainlyC．ultimatelyD．necessarily...
问题：Whistles could also be used to communicate between adult dolphins and baby dolphins.A．RightB．WrongC．Not mentioned...
问题：The food is insufficient for three people.A．instantB．infiniteC．inexpensiveD．inadequate...
问题：As early as the 6th century, Irish fishermen started raising dolphins in the Shannon estuary.A．RightB．WrongC．Not mentioned...
问题：Paragraph 4 ______...
问题：People are confused in their attempts to control malaria in Europe in the early 1900s, because scientists ______.A．identified only one mosquito species instead of six speciesB．thought only three mosquito species transmitted diseaseC．thought there was only...
