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注：D选项中的 greater proportion = 文章第三段中的 bigger share Mr. Gretz calculates that if solar energy only provided three percent of the EECs needs, this could still produce a saving of about a billion pounds in the present bill for imported energy each year. And he believes that with the possibility of utilizing more advanced technology in this field it might be possible to satisfy a much bigger share of the Communitys future energy needs. 27. Some scientists believe that a breakthrough in the use of solar energy depends on __________. A) sufficient funding B) further experiments C) advanced technology D) well-equipped laboratories 注：A选项讲到资金;C讲第三段，为窜段选项;D涉及句子次要成分的选项， ●涉及句子当中主要成分选项优选于涉及次要成分选项，次要成分包括：插入语，同位语 The senior West German scientist in charge of the Communitys solar energy program, Mr. Joachim Gretz, told journalists that at present levels of research spending it was most unlikely that solar energy would provide as much as three percent of the Communitys energy requirements even after the year 2,000. But he said that with a modest increase in the present sums, devoted by the EEC to this work it was possible that the breakthrough could be achieved by the end of the next decade. | 
