单项选择题

The federal officials argued that______.

A．infant death the rate is not reliable
B．the little radiation cannot threaten health
C．infant death rate has nothing to do with nuclear plants
D．the modem nuclear plants can avoid releases

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单项选择题

In Joseph Mangano's opinion______.

A．the study is worth researching deeply
B．it is no use to study
C．we need not pay attention to the report
D．the unclear plants should be alarmed by the report

单项选择题

The new study was conducted by______.

A．the government
B．radiation experts
C．antinuclear campaigners
D．public health statisticians