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  3. A breakthrough in the provision of energy from the sun for the European Economic Community (EEC) could be brought forward by up

A breakthrough in the provision of energy from the sun for the European Economic Community (EEC) could be brought forward by up

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问题   A breakthrough in the provision of energy from the sun for
the European Economic Community (EEC) could be brought forward by
up two decades, if a modest increase could be provided in the EEC’s 【M1】______
research effort in this field, according to the senior EEC scientists engage   【M2】______
in experiments in solar energy at EEC’s scientific laboratories at Ispra,
near Milan.
  The senior West German scientist in the charge of the Community’s solar  【M3】______
energy programme, Mr. Joachim Gretz, told journalists that at present levels
of research spending it was most likely that solar energy would provide 【M4】______
as much as three per cent of the Community’s energy requirements even
after the year 2000. But he said that with a modest increase in the present
sums, devoted by the EEC to this work it was possible the breakthrough  【M5】______
could be achieved by the end of the next decade.
  Mr. Gretz calculates that if solar energy only provided three per cent of
the EEC’s needs, this could still produce a saving of about a billion pound 【M6】______
in the present bill for imported energy each year. And he believes that
with the possibility of utilizing more advanced technology in this field 【M7】______
might be possible to satisfy a much big share of the Community’s future 【M8】______
energy needs.
  At present the EEC spend about $ 2.6 million a year on solar research 【M9】______
at Ispra, one of the EEC’s official joint research centers, but other $ 3 million   【M10】______
a year on indirect research with universities and other independent bodies.
【M4】
选项
答案likely改成unlikely
解析 逻辑错误，逻辑反义词。下一句的大意是说再过二十年太阳能的使用方面会有重大突破，句首的But说明下一句和此句是转折关系，所以此句应该是说在现有的水平下，太阳能不够负担EEC所需总能源的3%，这样才符合逻辑。
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