知识：民航中除了数字读法与日常不同，字母也有特殊读法，避免通信混淆。24个字母对应24个单词：a-alpha,b-bravo,c-charlie,d-delta,e-echo,f-foxtrot,g-golf,h-hotel,i-india,j-juliet,k-kilo,l=lima,m-mike,n-november,o-oscar,p-papa,q-qeubec,r-romeo,s-sierra,t-tango,u-uniform,v-victor,w-whiskey,x-xray,y-yankee,z-zulu江新年在报跑道a5,右转a时实际发音是：alpha5，右转alpha