423、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。

　Make sure that the ATC transponders are in standby mode when you simulate altitude. You can accidentally cause falseTCAS targets

　To make sure that ATC transceivers are in standby mode,you must simulate altitude ,otherwise false TCAS signals may occurintermittently

　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

解析：

解析:注释: transponder 应答机; transceiver 收发机; transmitter 发射机。accidentally 意外的; intermittently 间歇性的。

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