单选题
The primary purpose of this passage is to explain that ______.
A、
not all reports on food are scientifically sound
B、
it is important for the public to know the risks of pesticides
C、
vegetables and fruits can be harmful to children's health
D、
there should be no public concern over pesticides
【正确答案】
A
【答案解析】
本文通过对两个报道的分析说明并非所有的食物报告均有充分的科学依据。所以正确答案是A。B，C，D都明显不对。
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