题目内容
（请给出正确答案）
提问人：网友z*****n
发布时间：2022年3月25日 20:02
[单项选择题]
(1)An American survey has shown that each year every employed person loses three to four working day...One can deduce from the passage that colds are
A．not given enough attention by doctors.
B．more frequent in America than in England.
C．due to bacteria
D．likely to attack only very few types of animals.
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