根据表格第二列第二行 Big ocean fish have already been much fewer since the 1950s。自20世纪50年代以来,大型海洋鱼类的数量已经大大减少。可知答案为B。2.细节理解题。根据表格第三列第二行 The size of ocean fish is not as big as that in the past. 海洋鱼类的体型已经不像过去那么大了。可知答案...
根据The number of ocean fish has dropped by 90% in the past sixty years.The number of fish is smaller and smaller.Big ocean fish have already been much fewer since the 1950s鱼的数量越来越少。可知在过去的60年里,海洋鱼类的数量下降了90%。鱼的数量越来越少。自20世纪50年代以来,大型海洋鱼类...
Presents a report on ocean fisheries and its implications for aquaculture. History of ocean fisheries; Potential world harvest; Ways to increase the availability of fishery products from the oceans; Crisis brought by overuse of fisheries; Enhancement of aquaculture development.Avault...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www.springernature.com/us). Scientific American maintains a strict policy of editorial independence in reporting developments in science...
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根据短文内容.从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.Have you ever been to Venice. Around the world, no city is quite like Venice, Italy. Tourists love its beautiful old buildings and squares. But What makes Venice a really spec
【1】根据上文The beautiful city is built on a group of islands in a large lagoon beside the ocean.,联系下文的However可知,Venice is enjoyed by the young people from all parts of the world.和上一句存在转折关系,符合句意,故选E。 【2】根据上文What is happening?,结合段中的Because Venice is...
It is possible to comparewhat is happening nowwithwhathappened many millions of years ago when the ocean was more acidic. medsea-project.eu medsea-project.eu 我们可以把现在正在发生的事件与几百万年 前海洋更酸的时期进行对比。 medsea-project.eu ...
Choose the best answer to each question.Something big is happening to the human race - something that could be called the Great Transformation.Take the energy for example. Some people worry about what will happen when the deposits of petroleu 39、m are gone, but researchers are already ...