The transmission rate of the binary digital transmission system is 2400B,then the transmission bit rate is ____;if the system is hexadecimal, with the same symbol rate, the transmission bit rate is ____. A: 2400 bit/s, 2400 bit/s B: 2400 bit/s, 4800 bit/s C: 2400 bit/s, 9600 bit/s D: 4800 bit/s, 9600 bit/s
The transmission rate of the binary digital transmission system is 2400B,then the transmission bit rate is ____;if the system is hexadecimal, with the same symbol rate, the transmission bit rate is ____. A: 2400 bit/s, 2400 bit/s B: 2400 bit/s, 4800 bit/s C: 2400 bit/s, 9600 bit/s D: 4800 bit/s, 9600 bit/s
通常,信息的单位是( ) A: bit B: bit/s C: s D: bit/h•s
通常,信息的单位是( ) A: bit B: bit/s C: s D: bit/h•s
1Mbit/s=( ) A: 10^3 bit/s B: 2^20 bit/s C: 10^6 bit/s D: 2^10 kbit/s
1Mbit/s=( ) A: 10^3 bit/s B: 2^20 bit/s C: 10^6 bit/s D: 2^10 kbit/s
某十六进制数字基带系统速率为2400 Baud,则该系统的比特速率为( )。 A: 2400 bit/s B: 4800 bit/s C: 9600 bit/s D: 38400 bit/s
某十六进制数字基带系统速率为2400 Baud,则该系统的比特速率为( )。 A: 2400 bit/s B: 4800 bit/s C: 9600 bit/s D: 38400 bit/s
二进制码元速率为1200B,其信息速率为() A: 1200 bit/s B: 1200 bit C: 2400 bit/s D: 2400 bit
二进制码元速率为1200B,其信息速率为() A: 1200 bit/s B: 1200 bit C: 2400 bit/s D: 2400 bit
串行通信波特率的单位是() A: bit/s B: bps C: s/bit D: s/b
串行通信波特率的单位是() A: bit/s B: bps C: s/bit D: s/b
It's ______ hot today, isn't it A: little B: bit C: a bit
It's ______ hot today, isn't it A: little B: bit C: a bit
设一数字传输系统传送二进制码元的速率为2400B,若该系统改为传送十六进制码元,码元速率不变,这时系统的信息速率为()(<br/>)A.2400 bit/s A: 4800 bit/s B: 9600 bit/s C: 1200 bit/s
设一数字传输系统传送二进制码元的速率为2400B,若该系统改为传送十六进制码元,码元速率不变,这时系统的信息速率为()(<br/>)A.2400 bit/s A: 4800 bit/s B: 9600 bit/s C: 1200 bit/s
假设2ASK的基带成形波形采用矩形,则该数字调制系统的频带利用率为 。 A: 2bit/s/Hz B: 4 bit/s/Hz C: 1 bit/s/Hz D: 1/2 bit/s/Hz
假设2ASK的基带成形波形采用矩形,则该数字调制系统的频带利用率为 。 A: 2bit/s/Hz B: 4 bit/s/Hz C: 1 bit/s/Hz D: 1/2 bit/s/Hz
— It ’ s a warm day, isn —’ Yes, t it? it ’ s __________ cold. I just wear a jacket. A: not a bit B: a bit C: a little D: not a little
— It ’ s a warm day, isn —’ Yes, t it? it ’ s __________ cold. I just wear a jacket. A: not a bit B: a bit C: a little D: not a little