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单选题
521、Electronic devices that are-used in nearly all aircraft systems are the computer for system control and monitoring and the control inputs and indications in the cockpit and sensors throughout the whole aircraft.
A
Electronic devices can be found in nearly all aircraft system that are computer for system control and monitoring the cockpit and sensors all over the whole aircraft
B
You can find electronic devices in nearly all aircraft systems.They are systems control and monitoring computer, the control inputs and indications in the cockpit and sensors throughout the whole aircraft
C
The computer used for system control and monitoring and the control inputs and indications in the cockpit and sensors all over the whole aircraft are the electronic devices used/in almost all aircraft system
答案解析
正确答案：B
解析：
解析:monitoring 监控,监视。Indications 标示,显示。control inputs 输入控制。sensors 传感器。nearly=almost 几乎,差不多。
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