文档介绍：8UnsolvedRiddlesintheWorld ,,日常的许多事物至今仍然没有解释。我们有那么多先进技术和科学知识,却还是不能为以下八件让人困惑的事情找到答案ppt制作:沈栋华盐城工学院876543Let' 超能力/念力Researchershavetestedpeoplewhoclaimtohavepsychicpowers,,,(UnidentifiedFlyingObjects)exist-manypeopleseethingsintheskiesthattheycannotidentify,;giventhefantasticdistancesandeffortinvolvedinjustgettingtoEarthfromacrosstheuniverse,,whilecarefulinvestigationhasrevealedknowncausesformostsightingreports,someUFOincidentswillalwaysremainunexplained.