进近期间，卫星（GPS）导航信号丧失或降级；机载RNP系统组件失效， 造成失去RNP进近能力，驾驶员必须中断进近， 更改为使用传统程序或飞向备降场着陆? The flight crews should implement traditional procedure or alternate during the following conditions: GPS fault, GPS primary lost or navigation accuracy downgrade.
A.对 correct
B.错 incorrect
正确答案是A