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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.
【M5】
选项
答案在possible后增加that
解析 句法错误，句子结构不完整。句中的it是形式主语，代替的是possible后面的主语从句，而引导主语从句的that不可以省略。
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