Before contestants take part in provincial contests, their face to face training will be at least 400 hours.
Before contestants take part in provincial contests, their face to face training will be at least 400 hours.
A.正确
B.错误
正确答案:A
Before contestants take part in provincial contests, their face to face training will be at least 400 hours.
A.正确
B.错误
正确答案:A
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