单项选择题

The author cites the American Medical Association's advice in paragraph 4 in order to ______.

A．present more factual details to clarify the issue
B．present an alternative theory for consideration
C．present a recommendation from a reputable source
D．present a solution drawn from all the evidence considered
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单项选择题
The main point of this text is that ______.
A．pesticides are dangerous and their uses need to be reevaluated
B．children suffer most from the effects of pesticides
C．schools are most responsible for pesticide-related illnesses
D．pesticides should be eliminated everywhere
单项选择题
Children are more likely than adults to suffer the negative effects of pesticides because ______.
A．children absorb more pesticides than adults, proportionally
B．pesticides are used more in areas with children
C．the pesticides used in schools are more dangerous than other pesticides
D．adults know more about pesticides than children
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