A.對(duì)時(shí)精度±1μs,守時(shí)精度±4μs B.對(duì)時(shí)精度±4μs,守時(shí)精度±10μs C.對(duì)時(shí)精度±10μs,守時(shí)精度±4μs D.對(duì)時(shí)精度±1μs,守時(shí)精度±10μs
A.1 B.2 C.5 D.10
A.單模,1310 B.單模,850 C.多模,1310 D.多模,850