In Go-Back-N, what is the size of the receiver window?
A.
1
B.
2
C.
3
D.
4
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参考答案:
举一反三
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【单选题】听力原文:W: Good morning, Mr. Tim. It's a long time since I had the pleasure of a visit from you. M: Yes, it must be three or four years. I haven't visited you since I called about my will. You helped me ...