A.當(dāng)A站識(shí)別碼的第3位是偶數(shù)時(shí),TDM=0,奇數(shù)時(shí)TDM=1
B.當(dāng)A站識(shí)別碼的第3位是偶數(shù)時(shí),TDM=1,奇數(shù)時(shí)TDM=0
C.當(dāng)A站識(shí)別碼的第4位是偶數(shù)時(shí),TDM=0,奇數(shù)時(shí)TDM=1
D.當(dāng)A站識(shí)別碼的第4位是偶數(shù)時(shí),TDM=1,奇數(shù)時(shí)TDM=0