以太网中,在第 5 次碰撞之后,一个结点执行截断二进制指数退避算法时,选择的退避倍数 r 值为 4 的概率是
A.
0.125
B.
0.0625
C.
0.03125
D.
0.016129032258064516
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【简答题】补全对话,每空一词。 A: John, are you free tomorrow? B: Yes, why? A: Would you 1 to go to the cinema with me? B: That's a good 2 . A: It's Jackie Chan. Do you like him? B: Yes, he is my favourite film 3 . 4 is ...
【简答题】动词填空。 1.___________ she often __________ (read) English in the morning? 2.Would you like (go) with me? 3. Kitty and her sister ___________ (like) running very much. 4. Li Mei ___________ (have) a new ...
【简答题】根据句意,用括号内所给单词的适当形式填空。 1. —Would you like to play computer s with us? —Yes, with ______(please). 2. —Could you ______(fetch) me some hot water, dear? —Sure, Mom. 3. Let's raise money to help the __...
【简答题】—Would you like me to help you with the maths problem? —___________ It’s a most difficult one. A.With pleasure. B.Why not? C.That’s all right. D.It’s my pleasure.