SOME DID NOT INGEST MERCURY (假),SOME DID INGEST MERCURY (必为真) SOME DID NOT INGEST MERCURY ( 真), SOME DID INGEST MERCURY ( 可真可假) the following are also true: SOME DID INGEST MERCURY (假),SOME DID not INGEST MERCURY (必为真) SOME DID INGEST MERCURY ( 真), SOME DID not INGEST MERCURY ( 可真可假) so, SOME DID NOT INGEST MERCURY === SOME DID INGEST MERCURY. please think it again. -- by 会员 fyhllj (2003/10/3 23:04:00)
fyhllj麻烦再指点下: 上面引用的推理我可以理解,但是使用到题目中的话: 题目问的是基于以下哪个假设,即基于的假设默认是对的。 B假设是:SOME DID NOT INGEST,根据引用部分推理若此为真,那么SOME DID INGEST真假未定啊,并不能填补你在PAGE1里所说的GAP不是么?
请指教! |