送交者: lala 于 June 03, 2003 13:31:47:

回答: 拉拉教授，我怎么觉得应该是1/4呢？ 由 CANADAGE 于 June 03, 2003 13:10:03:

Every point can be defined as either 南极 or 北极. The answer (7/8) has been given at 虹桥科教.

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