Even a mighty express train can be _____ by signals.
举一反三
- A voltage comparator can convert analog signals into digital signals. A: Correct B: Wrong
- A sensor is a kind of device which can convert electrical signals into excitation signals. A: Correct B: Wrong
- For nonuniform quantizer, such as μ-law and A-law, the SNR for low-level signals increases at the expense of the SNR for high-level signals.
- The lnductrack Ⅱ design can produce a very strong magnetic field even when the train runs more slowly by ______.
- Kids on the express train see Santa at the North Pole.（)