以下哪些是国际电联确认的3G标准（）
A.CDMA2000
B.TD-SCDMA
C.WinMAX
D.WCDMA
参考答案：A, B, C, D
(2013·辽宁，26)At no time________the rules of the game.It was unfair to punish them.
A．they actually broke
B．do they actually break
C．did they actually break
D．they had actually broken
位于鼻咽部的是（）
A．梨状隐窝
B．咽隐窝
C．肋膈隐窝
D．扁桃体窝
E．髂窝
