单项选择题

A．Cold-blooded animals.
B．Warm-blooded animals.
C．Porcupines.
D．Certain animals in Afric
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单项选择题
In the last paragraph, the author thinks that
A．it' s necessary to stitch the public interest in wrongheaded extremes
B．additional research on the ecological consequences of genetic engineering should put the public interest at the core
C．it' s necessary to establish new agencies to take responsibilities for testing the environmental consequences of agribiotech
D．to acknowledge the growing impact of the genetic engineering is to be ready for global disaster
单项选择题
The disadvantage of the patchwork of US regulatory agencies that govern agricultural biotech is that ______.
A．none of these agencies is responsible for wild plants
B．one thing is omitted from the patchwork: human tolerance for pesticides
C．there is bureaucratic cracks and the public interest is ignored
D．pesticides are exempt from FDA' s reach
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