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2007年高考山东卷第20题为:题目如图1,甲船以每小时302海里的速度向正北方向航行,乙船按固定方向匀速直线航行.当甲船位于A1处时,
In the 2007 Shandong Exam 20th volume, the title is: Figure 1. The A-ship sails at a speed of 302 nautical miles per hour to the north, and the B-boat sails at a constant speed in a fixed direction. When the A-ship is at A1,