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【简答题】
设p,q的真值为0;r,s的真值为1,求下面各命题公式的真值: 1、p∨(q∧r)的真值为 2、(p←→r)∧( ¬ q∨s)的真值为 3、(p∧(q∨r))→((p∨q)∧(r∧s))的真值为 4、 ¬(p∨(q→(r∧ ¬p)))→(r∨ ¬s)的真值为
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举一反三
【简答题】将所给直接引语变为间接引语,每空一词 He said, “I haven’t seen her today.” He said he _______ seen her that day.
【简答题】将所给直接引语变为间接引语,每空一词He asked, “How did you find it, mother?”
【简答题】将所给直接引语变为间接引语,每空一词 They said , “We are happy to help you.” They said that they _______ happy to help us.
【简答题】将所给直接引语变为间接引语,每空一词。 “I never eat meat.” he said. He said that ______ never ______ meat.
【简答题】将所给直接引语变为间接引语,每空一词“I am having supper,” he said. He said that _______ _______ having supper.
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