问题详情
“一个推理只有形式正确，才能得出可靠的结论，这个推理结论不可靠，所以这个推理形式不正确。”这个假言推理使用了
A.正确的否定后件式B.错误的否定后件式C.正确的否定前件式D.错误的否定前件式
未找到的试题在搜索页框底部可快速提交，在会员中心"提交的题"查看可解决状态。
收藏该题
查看答案
相关问题推荐
-
The theory of language underlying the Grammar -Translation Method was derived from_______
A.Comparative Historical Linguistics B.Functional Linguistics C.Cognitive Psychology D.Psychoanalysis -
_____________ideas on education justified the views on language teaching with the Direcet Method,
A.Hermann Paul's B.J.
A.Comenius' C.F.Gouin's D.W.M. Wundt's -
Although the teaching of all the four language skills is advocated by most Direct Methodologists,__________ communication skills are regarded as basic.
-
去年某月，股市出现了强劲反弹，某证券部通过对该部股民持仓品种的调查发现，大多数经验丰富的股民都买了小盘绩优股，而所有年轻的股民都选择了大盘蓝筹股，而所有买了小盘绩优股的股民都没买大盘蓝筹股。如果上述情况为真，则以下关于该证券部股民的调查结果也必定为真的I.有些年轻的股民是经验丰富的股民。Ⅱ.有些经验丰富的股民没买大盘蓝筹股。Ⅲ.年轻的股民都没买小盘绩优股。
A.只有ⅡB.只有I和ⅡC.只有Ⅱ和ⅢD.只有工和Ⅲ -
吸入性肺脓肿坐位时好发于
A、下叶后基底段B、上叶后段或下叶背段C、上叶尖后段和下叶背段D、左下叶和舌叶支气管