对于11n的单独布放型AP的部署，在单双流配置中集团建议配置为（）模式。
A、单双流自适应
B、单流自适应
C、双流自适应
D、任意配置
参考答案：A
I was so excited at the news that I could hardly ______ my feelings in words.
[ ]
A. carry
B. convey
C. survey
D. communicate
砌筑式井壁施工时，砌体的规格应满足压茬长度不应少于砌体长度的（）
A.1/5
B.1／4
C.1／3
D.1／2
