IEEE 802.11标准的MAC层采用（）协议。

My first is in SPRING but not in SUMMER My second is in BAND but not in DRUMMER My third is in ORANGE and also in REDMy fourth is in TALK but not in SAIDMy last is in FROSTY but not in SNOW.I am a fun place to go. What am I? 点击查看答案

IPv6协议是为下一代互联网而设计的互连协议，其地址长度为（）。

A.128位
B.32位
C.48位
D.256位

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