2. 外语
  3. The European Union had approved a number of genetically modified crops until 1998. But growing public concern over its

The European Union had approved a number of genetically modified crops until 1998. But growing public concern over its

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问题     The European Union had approved a number of genetically
modified crops until 1998.  But growing public concern over its                S1.______
supposed environmental and health risks led several EU countries
to demand a moratorium(暂时禁止) on imports of any new GM
produce. By lately 1999 there were enough such countries to block              S2.______
any new approvals of GM produce.
    Last year, America filed a complaint at the WTO about the
moratorium, arguing that it was an illegal trade barrier because
there is scientific basis for it. As more studies have been completed          S3.______
on the effects of GM crops, the green’s case against them has                  S4.______
weakened.
    Much evidence has emerged of health risks from eating them.                S5.______
And, overall, the studies have shown that the environmental
effects of modifying crops are not always as serious as the greens             S6.______
claim. Nevertheless, environmentalists continue to find fault with
such studies and argue which they are inconclusive.                            S7.______
    While Americans seem happy enough to consume food made
from GM crops, opinion polls continue to show that European
consumers dislike the idea. Europeans seem to be taken the attitude            S8.______
which, since there remains the slightest possibility of adverse
consequences and since it was still unclear how they, as consumers             S9.______
benefit of GM crops, they would rather not run the risk.                       S10.______
选项
答案its→their
解析 本题考查代词指代，此处代词指代的是genetically modified crops(为复数)，所以将its改成their。
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