送交者: cornbug 于 2005-6-30, 14:41:41:
回答: Hack 65: Why Can't You Tickle Yourself? (PDF) 由 qiubo 于 2005-6-30, 14:21:41:
Need one more experiment. If you are holding someone else's hand to touch your own armpit, will you be entertained?
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