诺西FlexiEDGEBTS的RTC(ECxA)的功能有:()
A、TX合路
B、双工滤波
C、RX信号的放大和分路
D、内部互为分集
参考答案:A, B, C
--- Have you moved into the new house?
--- Not yet. The walls ______.
A.were painted
B.were being painted
C.are painted
D.are being painted
会议通知包括标题和__________。