A. A GE Ethernet interface can only work in full-duplex mode.
B. A 10 GE Ethernet interface can only work in full-duplex mode.
C. Interconnected Ethernet interfaces can work normally when the working modes of the two interfaces are different.
D. The working mode of Ethernet interfaces can be configured manually.
E. A 100M Ethernet interface can work in either full-duplex mode or half-duplex mode.