第2問看了答案回答:efa影印的ef線貼到ab線上、形成一把隻打開45度的折扇、去除扇骨部分求扇麵部分(影印)。可能就好理解了
所有跟帖:
• 天哪,簡直是神解釋,你們太聰明了!!! -Emmajapan- ♀ (0 bytes) () 06/15/2017 postreply 07:25:23
• 天哪,簡直是神解釋,你們太聰明了!!! -Emmajapan- ♀ (0 bytes) () 06/15/2017 postreply 07:25:23
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