23,22,20,18,15这组数的中位数是______.
23,22,20,18,15这组数的中位数是20.
故答案为:20.
A new government was set _____ after war. [ ]
A. out
B. up
C. off
D. down
根据《中国移动2GTD-SCDMA核心网电路域工程验收规范》,基站控制器的缩略语是()。
A.BSS
B.BSC
C.BTS
D.MSC