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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单项选择题Which of the following statements is true of superweeds

A．Superweeds could eradicate food crops.
B．Crops genetically engineered to resist pesticides could make superweeds grow high.
C．Superweeds could hinder food crops' growth.
D．Superweeds could grow between cracks.

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 author thinks that the biologists who engineer genes into plants ______ .

A．are nothing more than any other substances because they are made of molecule too
B．pay special attention to living things and their relation to their environment
C．insert the genes of one species among the genes of another and test the environment consequences
D．modify the genes of our food crops without considering the influence on the whole organism

单项选择题Helicopter parents means ______.

A．parents who tend to overdramatize small incidents
B．parents who can' t put things in perspective
C．parents who are otherwise exceedingly rational people can become irrational when it comes to their children
D．parents who are too protective

单项选择题According to the passage, why should parents listen respectfully to each child' s idea even if he has some rather bizarre or violent suggestions

A．Because it makes the child creative.
B．Because it' s acceptable given that he is young.
C．Because the child should be permitted to explore his own world.
D．Because it makes parents gentler approaches more acceptable.