单选题What frame type is used to signal TSPEC reservation from a client?（）ARSVPBADDTSC802.11 association information elementsDWMM capabilities exchange
单选题
What frame type is used to signal TSPEC reservation from a client?（）
A
RSVP
B
ADDTS
C
802.11 association information elements
D
WMM capabilities exchange
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解析：
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