论文部分内容阅读
[题目一]一架飞机在当地时间1时30分从乙地(150°W、60°N)处起飞时太阳正好在地平线上,飞机朝正西飞,到达甲地(150°E、60°N)时看见太阳又在地平线附近。请问飞机飞行时间有多长:
[Subject 1] The plane was on horizon when the plane took off at B (150 ° W, 60 ° N) at 01:30 local time and flew to the West while arriving at A (150 ° E, 60 ° N) saw the sun again near the horizon. How long is the flight time?