标题: 继续求助，白勇的题 [打印本页] 作者: fly_with_me 时间: 2010-9-13 18:24 标题: 继续求助，白勇的题 section5-26 In its most recently approach, the comet Crommelin passed the earth at about the same distance and in about the same position, some 25 degrees above the horizon, that Halley's comet will pass the next time it appeaars. (D)as will Halley's comet (E)as Halley's comet will do