Which of the following is not the main limitation of optical transmission signals .
A: eye opening
B: pulse overshoot
C: undershoot limitations
D: amplitude
A: eye opening
B: pulse overshoot
C: undershoot limitations
D: amplitude
D
举一反三
- Among the following four transmission media, which has the widest bandwidth, the smallest signal transmission attenuation and the strongest anti-interference capability? A: Twisted pair B: Coaxial cable C: Optical fiber D: Microwave
- Which of the following is not a single factor pulse? A: thin pulse B: slow pulse C: uneven pulse D: floating pulse
- Which of the following is not a single factor pulse? A: superficial pulse B: retarded pulse C: thin pulse D: uneven pulse
- Which of the following functions can a timer in a computer system be used to achieve? A: Generate interrupt signal regularly B: Measuring the frequency of external periodic signals C: Generate periodic pulse signals D: Generate periodic sine wave
- Which of the following pulse patterns is caused by discontinuous pulse and qi phases? A: knotted pulse B: slow-regular-intermittent pulse C: abrupt pulse D: uneven pulse
内容
- 0
Which of the following pulse conditions can be seen in normal people? A: feeble pulse B: forceful pulse C: slippery pulse D: uneven pulse
- 1
Among the following transmission media, the lowest bit error rate is ( ) . A: Optical fiber B: Coaxial cable C: Twisted pair D: Microwave
- 2
Which of the following is NOT included in the opening of the presentation?
- 3
EYE COLOR Which of the following best describes your eye color?
- 4
中国大学MOOC: Which of the following is a limitation of the internal audit function?