下列哪项属于会使CDFA技术出现偏差的风险？which of the following may lead to the ris

下列哪项属于会使CDFA技术出现偏差的风险？which of the following may lead to the risk of CDFA deviation？

A.过低的外界温度。too low OAT

B.没有安装BARO-VNAV设备。no BARO-VNAV equipments

C.没有安装GNSS系统。no GNSS system

正确答案是A