Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.()
第1题:
The maximum data rate of any single wireless link can be described by the shannon’s theorem which is related to the()in hertz,and the()on the channel
A.signal frequency B.bandwidth C.carrier frequency D.noise frequency A.signal B.caeeier C.noise D.data signal
第2题:
此题为判断题(对,错)。
第3题:
pulse repetition frequency, PRF
第4题:
OFDM的英文是()
A.OverloadFrequencyDivisionMultiplexing
B.Orthogonal?Frequency?Division?Multiplexing
C.Overwhelming?Frequency?DivisionMultiplexing
D.Outstanding?Frequency?Division?Multiplexing
第5题:
Shorter pulse lengths which may be repeated at a faster rate (higher pulse repetition frequency) on short ranges will give______at those ranges.
A.Good Bearing discrimination
B.Good Range discrimination
C.Poor Bearing discrimination
D.Poor Range discrimination
第6题:
Voicing is the vibrating of the vocal cords when sounds are produced.()
第7题:
A. the higher rent it is
B. the higher rent it would have
C. the higher the rent is
D. the higher rent it would be
第8题:
LTE室外同频组网下的频率规划演变成基于『____』的ICIC。(The frequency plan evolved into the ICIC based『____』in LTE network with the same frequency.)
第9题:
A.higher than the bus equency
B.lower than the bus equency
C.the same as the bus frequency but out of phase with it
D.same as the bus frequency and the circuit breaker may be closed at
第10题:
You are attempting to parallel two AC generators, and the synchroscope(同步器) pointer is revolving in the fast direction. This indicates that the frequency of the incoming machine is ______.
A.higher than the bus frequency
B.lower than the bus frequency
C.the same as the bus frequency but out of phase with it
D.the same as the bus frequency and the circuit breaker may be closed at any pointer position