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【单选题】
关于匀速圆周运动,下列说法正确的是 ( )A.
匀速圆周运动就是匀速运动
B.
匀速圆周运动的加速度是恒定不变的
C.
做匀速圆周运动的物体处于平衡状态
D.
匀速圆周运动是一种变加速运动
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举一反三
【单选题】The primary purpose of ______ is to map the binary information sequence into signal waveforms.
A.
source encoder
B.
channel encoder
C.
digital modulator
D.
digital demodulator
【单选题】Binary information received from an input device is stored in ( )
A.
adders
B.
memory
C.
encoders
D.
decoders
【简答题】Android四大组件分别为
【简答题】RFID 标签根据是否带电池分为 标签和 标签。
【简答题】群体检查一般采用静态检查、动态检查和____检查。
【单选题】A unit is a device to which binary information is transferred for storage and from which information is retrieved when needed for processing, the unit is a ( ).
A.
BUS
B.
IO port
C.
memory
D.
decoder
【判断题】The binary code for SOS is information and the word "HELP!!!" is knowledge.
A.
正确
B.
错误
【单选题】The primary purpose of ______ is to map the binary information sequence into signal waveforms.
A.
source encode
B.
channel encoder
C.
digital modulator
D.
digital demodulator
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