打个简单的比方,“狗有四条腿”成立,反过来“有四条腿的就是狗”显然就是错误的了。
实
%D6%C7%C4%DC%D7%D4%B6%AF%B1%A8%C5%C6%D1%A5%B3%F6%D7%E2%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%D6%C7%C4%DC%D7%D4%B6%AF%B1%A8%C5%C6%D1%A5%B3%F6%D7%E2%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%D6%C7%C4%DC%D7%D4%B6%AF%B1%A8%C5%C6%D1%A5%B3%F6%D7%E2%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%D6%C7%C4%DC%D7%D4%B6%AF%B1%A8%C5%C6%D1%A5%B3%F6%D7%E2%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%D6%C7%C4%DC%D7%D4%B6%AF%B1%A8%C5%C6%D1%A5%B3%F6%D7%E2%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%D6%C7%C4%DC%D7%D4%B6%AF%B1%A8%C5%C6%D1%A5%B3%F6%D7%E2%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF
%D6%C7%C4%DC%D7%D4%B6%AF%B1%A8%C5%C6%D1%A5%B3%F6%D7%E2%2D%A1%BE%40%31%33%37%31%30%30%37%39%36%38%38%A1%BF


