单项选择题
A. oap connect slot 0 B. oap connect slot 1 C. [H3C]oap connect slot 0 D. [H3C]oap connect slot 1
A.400MHz和800MHz B.800MHz和1800MHz C.2.4GHz和5GHz D.5GHz和8GHz
A.IrDA B.BuleTooth C.802.11b/g D.802.11a E.802.11n