题目

Strange things happen to time when you travel because the earth is divided(划分为)into twenty-four zones(时区), one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days. If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Travelling west, you put your watch back, travelling east you put it forward. Each day of your trip has either twenty-five or twenty-three hours. If you travel by ship across the Pacific O以平面直角坐标系中的两点O1(0,3)和O2(4,0)为圆心,以8和3为半径的两圆的位置关系是(  )A.内切B.外切C.相离D.相交
英语 试题推荐