单选题
According to Paragraph 2 ______.
A、
people of higher status are less likely to be stricken with diarrhea
B、
diarrhea is no longer a serious disease in the modem world
C、
diarrhea has been a threat to humanity throughout history
D、
the elderly are more likely attacked by diarrhea than the young
【正确答案】
C
【答案解析】
“自从有史学家记载以来，腹泻就令国王、平民、妇女、儿童都病倒过。…在当今世界，……腹泻仍然是人类两大最为普遍的疾病之一。”所以正确答案是C(有史以来，腹泻一直给人类造成威胁)。
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