—A new study proves(证明) a walk every day is enough to keep people away from fat.A. 30-minu

发布时间：2020-08-21 06:46:50

—A new study proves(证明) a      walk every day is enough to keep people away from fat.
A. 30-minute
B. 30 minute’s
C. 30-minutes
D. 30 minutes’s

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(答案→)A. 30-minute
B. 30 minute’s
C. 30-minutes
D. 30 minutes’s
解析：30-minute可作定语，30 minutes 可作定语，故选A
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