Most Americans remember Mark Twain as the father of Huck Finn's idyllic cruise through eternal boyhood and Tom Sawyer's endless summer of freedom and adventure. (3%)
【简答题】Lesson One Blank-filling-3 PIL: _____ Control, BAW204 , over _______ at 4500meters, estimating ________ 35 CTL: Station calling Control, say again your callsign.