A.預約當日 B.預約當日起不超過兩天 C.預約當日起不超過三天 D.預約當日起不超過五天
A.117.131.133.16 B.117.133.131.26 C.117.133.131.16 D.117.131.133.26
A.ping B.ipconfig C.tracert D.routeprint