以下技术标准中，哪些属于非3GPP技术（）
A.WiMAX
B.WiFi
C.GSM
D.CDMA2000
参考答案：A, B, D
There are many differences between the two popular programs —— Happy Camp & Where Are We Going？Dad！The former is filled with happiness,while the _______ is full of love．
A．official
B．fluent
C．native
D．latter
外商投资旅行社的外国旅游经营者应当符合哪些条件
