For airplanes having an array of sophisticated or complex systems, the full system/chapter method of indexing is recommended.对于拥有一系列复杂或复杂系统的飞机，建议采用全系统/章节的索引方法
A.For aircraft with a range of sophistic lor complex systems, a system-wide indexing approach is recommended. B.For aircraft including an article of exquisite or complex systems, a whole system indexing way is intended, C.The aircraft which have a number of complicated or complex systems are suggested to use the full system/chapter index method.正确答案C
