设前提: pù?q ? r, p, q ? s, ?s. 则下面哪些是其有效结论：

答案查看网，轻松搜题/搜资源

【多选题】【消耗次数：1】

① r

② ?q.

③ q?p

④ q

参考答案：

复制

纠错

相关题目

【多选题】设前提: púq, p?r, q?s. 则下面哪些是其有效结论：

① rús

② rùs.

③ (pùq)?r

④ (pùq)?s

查看完整题目与答案

【多选题】设前提: p??q, ?rúq, rù?s. 则下面哪些是其有效结论：

① q

② ?p.

③ ?q

④ p?q

查看完整题目与答案

【多选题】设前提: ?púr, ?qús, pùq. 则下面哪些是其有效结论：

① t? (rús)

② rús.

③ rùs

④ p?q

查看完整题目与答案

【多选题】设前提: p? (q?r), s?p, q. 则下面哪些不是其有效的结论：

① q?r

② s?q.

③ s?r

④ r?s

查看完整题目与答案

【判断题】设前提: p?r, q?s, pùq. 则r?s是其有效结论。

① 正确

② 错误

查看完整题目与答案

【多选题】设前提: p? (q?r), p, q. 则下面哪些是其有效结论：

① q?r

② r.

③ rùs

④ s

查看完整题目与答案

【多选题】设前提: p?r, ?q?p, ?r. 则下面哪些是其有效结论：

① ?q?r

② p.

③ ?p

④ q

查看完整题目与答案

【多选题】设前提: (púq) ? (rùs), (sút) ?u. 则下面哪些不是其有效的结论：

① rùs

② u.

③ u?p

④ p?u

查看完整题目与答案

【判断题】设前提: p ? ?q, r ? q. 结论: r ? ?p. 则推理的形式结构为： (p ? ?q) ù (r ? q) ? (r ? ?p).

① 正确

② 错误

查看完整题目与答案

【多选题】设前提: p?q. 则下面哪些是其有效结论：

① pùq

② ?púq.

③ q

④ ?pú (pùq)

查看完整题目与答案

随机题目

【单选题】 The 20th century has witnessed a great achievement in English poetry and novel, which are mainly represented by the following except ____.

① Thomas Hardy

② Ezra Pound

③ T. S. Eliot

④ Robert Browning

查看完整题目与答案

【单选题】 _________is considered to be the best-known English dramatist since Shakespeare.

① Oscar Wilde

② Galsworthy

③ G. B. Shaw

④ W. B. Yeats

查看完整题目与答案

【判断题】 Wuthering Heights is known today as Charlotte Bront?’s most fascinating novel.

① 正确

② 错误

查看完整题目与答案

【判断题】 Heathcliff is the primary narrator of the novel Wuthering Heights.

① 正确

② 错误

查看完整题目与答案

【单选题】 An example of dramatic monologue is _____________.

① Don Juan

② When We Two Parted

③ My Last Duchess

④ The Waste Land

查看完整题目与答案

【单选题】 The heroine Tess in Tess of the Durbervilles seems to be led to her final destruction step by step by ______, as Hardy says at the end of the novel: “Justice was done, and the President of the Immortals had ended his sport with Tess.”

① Angel Clare

② Alec

③ Fate

④ Jude

查看完整题目与答案

【单选题】 In depiction of his characters, Dickens is famous for_____.

① those innocent, virtuous, persecuted, hopeless child characters

② those horrible and grotesque characters

③ those broadly humorous or comical ones

④ all the above

查看完整题目与答案

【单选题】 Which of the following writing is not the work by Charles Dickens?

① Tale of Two Cities

② Hard Times

③ Oliver Twist

④ Sons and Lovers

查看完整题目与答案

【单选题】 Wuthering Heights is known today as __________most fascinating novel.

① Charlotte Bront?’s

② Anne Bront?’s

③ Emily Bront?’s

④ George Eliot’s

查看完整题目与答案

【单选题】 Hardy’s local-colored works are known as “novels of character and _____.”

① personality

② nature

③ domestic life

④ environment

查看完整题目与答案