Which three benefits are realized by implementing Wireless LAN Solution Engine (WLSE)?()
A. improved WLAN security
B. simplified AP deployment
C. dynamic RF management
D. on-demand location of rogue APs
E. system-wide control of status and alarm monitoring
F. automatic channel and power level adjustment
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用火焰校直法对阀杆进行校直时,一般加热带宽度接近阀杆的直径,长度为直径的()倍。
A. 1.2~1.5;
B. 2~2.5;
C. 3~3.5;
D. 5~6。
鸦片战争后,为适应近代工业需要,教育出现三种不同性质学校()、洋务学堂、新学校。
快速制动的平均制动减速度是()。
A. 大于等于1.0m/s3
B. 大于等于1.1m/s3
C. 大于等于1.2m/s3
D. 大于等于1.3m/s3