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单选题
821、在模拟高度时,确保 ATC应答机处于备用状态,否则可能会意外地产生虚假的TCAS 目标。
A
Make sure that the ATC transponders are in standby mode when you simulate altitude. You canaccidentally cause false TCAS targets.
B
To make sure that AT
C
Make sure the ATC transmitters are in standby mode, or false TCAS targets may occur accidentally due to altitude simulation.
答案解析
正确答案：A
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