单项选择题
其他机场用绿色符号表示。()
A.Other airports are expressed by green symbol. B.Other airports are expressed by gray symbol. C.Other airports are shown by green symbols. D.Other airports are shown by gray symbols.
单项选择题 进场和离场为同一条航线。()
单项选择题 J-26 航路不使用此导航设施或报告点。()