The wrong statement about the formula is ( )
A: The higher the frequency, the shorter the wavelength
B: The lower the frequency, the shorter the wavelength
C: The worse the penetration, the higher the discrimination
D: the better the penetration, the lower the discrimination
A: The higher the frequency, the shorter the wavelength
B: The lower the frequency, the shorter the wavelength
C: The worse the penetration, the higher the discrimination
D: the better the penetration, the lower the discrimination
举一反三
- Generally speaking, the higher the sound quality is required, the higher the quantization level and the lower the sampling frequency is.
- Generally speaking, the higher the sound quality is required, the higher the quantization level and the lower the sampling frequency is. A: 正确 B: 错误
- Which one of the following statements about supply chain performance is true A: lower aggregate inventory will result in higher current assets B: higher inventory turns will result in higher working capital requirements C: longer delivery times will require higher levels of working capital D: shorter new product development time will result in lower revenue
- Data towards the edge of k-space is A: ) more intense. B: ) representative of higher frequency responses relative to that at the centre. C: ) representative of lower frequency responses relative to that at the centre.
- Generally, an analog signal can be reconstructed more accurately with A: more quantization levels B: fewer quantization levels C: a higher sampling frequency D: a lower sampling frequency E: either answer (a) or (c)