摩托罗拉E680采用()操作系统。
A、Symbian
B、Windowsmobie
C、Palm
D、Linux
参考答案:D
Which channel and mode should be used when initiating a distress alert transmission?()
A.Channel 6 DSC
B.Channel 6 Radiotelephony
C.Channel 13 Radiotelephony and channel 16 DSC
D.Channel 70 DSC