某卫星信道数据速率为64Kb/s，帧长4000比特，采用停等ARQ协议，则信道的最大利用率为（）。
- A.0.480
- B.0.125
- C.0.104
- D.0.010
正确答案及解析
正确答案
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The Internet of（ 1）（IoT） describes physical objects that are embedded with Sensor，processing abilities，softwares，and other technologies that connect with other devices and systems over the （ 2） or other communication and exchange data networks .Over the past few years, IoT has become one of the most important technologies of the （ 3 ） centuryWe can connect objects to the Internet via embedded devices. By means of（ 4） computing, the cloud, big data, and mobile technologies, physical things can share and collect data with minimal human intervention. Traditional fields of embedded systems，wireless （ 5） networks （WSNs），control systems，automation, independently and collectively enable IoT.回答5处
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- A.sensor
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- A.low-level
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- A.19th
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- A.path
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- A.this
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