Title Text:The local police, growing increasingly concerned about this church, ask parishioners to take a sip of wine and then spit it back out for DNA testing. It’s blood, and it matches a 1970s murder victim.< Origin:https://xkcd.com/1152/ https://www.explainxkcd.com/wiki/index.php/1152:_Communion 地方警力對這個教堂越來越感到擔心，要求教區居民嚐一口紅酒之後吐出來做 DNA…