Recently some studies have found that learning second language can lead to increase in o

发布时间：2020-08-16 07:43:05

Recently some studies have found that learning      second language can lead to      increase in one’s brain power.
A. a; the
B. 不填; the
C. a; an
D. the; an

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A. a; the
B. 不填; the
(答案→)C. a; an
D. the; an
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