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 author mentions the exaggerated effects of chemicals on children in paragraph 2 to ______.
A．prove that pesticides are dangerous to all humans
B．show that children are more susceptible to many kinds of dangers
C．suggest a solution to the problem of pesticides
D．identify one group that pesticides hurt in particular
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
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