It is well known that biology is science about living things.A. aB. theC. /D. an

发布时间：2020-08-17 10:56:52

It is well known that biology is      science about living things.
A. a
B. the
C. /
D. an

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(答案→)A. a
B. the
C. /
D. an
解析：选择A。science泛指时一般是不可数名词，当说具体某一门学科市场在前面加不定冠词。
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