Under the expedite system, the server must win the point before the opponent makes _____ consecutive returns in a rally; otherwise the point goes to the opponent. ( )
Under the expedite system, the server must win the point before the opponent makes _____ consecutive returns in a rally; otherwise the point goes to the opponent. ( )
A.12
B.13
C.15
D.18
正确答案:13
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时间:2022-03-24 21:16:05