The simple high frequency sinusoidal wave which contains no information of its own is（ ）
A: modulation
B: general function
C: carrier
D: transmission
A: modulation
B: general function
C: carrier
D: transmission
举一反三
- Legal English is characterized by its high frequency of active sentences.
- On the future battlefield, laser technology will be used ______. A: in the communication between vehicles and aircrafts only B: to both sending information to and receiving information from satellites C: widely in war due to its high capacity and low weight D: exclusively to handle the transmission of voice messages
- Indulging in language for its own sake is the _________ function of language. ontact and code.
- Which of the followings contains a labiodental consonant? A: cough B: smile C: though D: high
- Ψ in the<br/>Schrödinger equation is ( ) A: wave<br/>function B: probability<br/>density C: radial<br/>wave function D: angular<br/>wave function