题目
A.Sounds great!
B.Good luck
C.Have fun
第1题
A.Yes,you can go there by yourself.
B.Yes,it's better to leave earlier to avoid the morning traffic.
C.Yes,I think you should stay here longer.
第5题
第7题
A.Slats
B.Elevator
C.Dorsal fin
第8题
A.Active close, passive close, FIN, ACK
B.Passive close, Active close, FIN, ACK
C.Active close, passive close, ACK, FIN
D.Passive close, active close, ACK, FIN
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