[填空题]

The European Union had approved a number of
genetically modified crops until late 1998. But growing
public concern over its supposed environmental and health 62. ______
risks led several EU countries to demand a moratorium (暂时
禁止) on, imports of any new GM produce. By late 1999
there were enough such country to block any new approvals 63. ______
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 no scientific base for it. 64. ______
As more studies have been completed on the effects of
GM crops, the greens’ case for them has weakened. 65. ______
Much evidence has emerged of health risks from eating them. 66. ______
And, overall, the studies have shown that the environmental
effects on modified crops are not always as serious as the 67. ______
greens clai

最新试题

• ●    [判断题]液膜萃取技术不能与GC、LC方法联用。
• ●    [单选题]我国在衡量财政支出规模时，用（ ）来衡量。
• ●    [单选题]银汞合金中合金粉由哪几种金属材料组成 ( )
• ●    [判断题]行车时,当看不清前方100m处物体时,应开启前照灯。车速在30km/h以内,可使用近光灯,
• ●    [单选题]初产妇,34岁。孕41周,临产10小时,检查:胎心130次/min,宫口开大3cm,有肛门
• ●    [单选题]风力大于5级，或湿度大于( )%时，不宜进行带电作业。