出险车辆施救前，如果所估算的施救、保护费用与修理费用相加，已达到或超过保险金额时，可以推定全损予以赔偿。
参考答案：对
根据上句完成下句，且使上下两句意思一致，每空一词。
1. To eat a balanced diet is very important.
________ very important ________ eat a balanced diet.
2. They are watching TV at home now.
They are watching TV at home ________ ________ ________.
3. What's wrong with your sister?
What's ________ ________ with your sister?
4. She has a sore throat.
There is something ________ ________her throat.
5. There is a lot of milk in the bottle.
There is ________ ________ milk in the bottle.
下列何情况应急灯系统不会工作（）
A.P5板应急电门在ON位时
B.后乘务员面板应急电门在ON位时
C.当飞机无直流电源时
D.当飞机使用备用电源时
