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问题：Sperm whales can produce stronger ultrasonic waves to kill their prey than dolphins.A．RightB．WrongC．Not mentioned...
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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：For young children, getting dressed is a complicated business.A．strangeB．complexC．personalD．funny...
问题：Ronan Hickey analyzed almost 2000 different dialects of the bottle-nose 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：Crashed Cars to Text Message for HelpThere is no good place to have a car crash -- but some places are worse than others. In a foreign country, for instance,【51】 to explain via cellphone that you are upside down in a ditch (沟渠) when you cannot speak the l...
问题：John is collaborating with mary in writing an article.A．cooperatingB．competingC．combiningD．arguing...
问题：Thousands of people perished in the storm.A．diedB．sufferedC．floatedD．scattered...
问题：The river widens considerably as it begins to turn west.A．twistsB．stretchesC．broadensD．bends...
问题：Paragraph 4 ______...
问题：AIBS's is composed of ______.A．more than 80 societies and 250,000 membersB．250,000 biologistsC．80 member organizationsD．more than 250,000 members and 80 member societies...
问题：Paragraph 6 ______...
问题：The food is insufficient for three people.A．instantB．infiniteC．inexpensiveD．inadequate...
问题：Electromagnetic EnergyWhite light seems to be a combination of all colors. The energy that comes from a source of light is not limited to the kind of energy you can see. Heat is given off by a flame or an electric light. On a cloudy day it is possible to ...
问题：He is determined to consolidate his power.A．strengthenB．controlC．abandonD．exercise...
问题：But in the end he approved of our proposal.A．undoubtedlyB．certainlyC．ultimatelyD．necessarily...
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 5 ______...
问题：Whistles could also be used to communicate between adult dolphins and baby dolphins.A．RightB．WrongC．Not mentioned...
