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外语
A.I saw a boy. B.I saw a child. What is the semantic relation of these two sentences?
A.I saw a boy. B.I saw a child. What is the semantic relation of these two sentences?
admin
2015-02-17
33
问题
A.I saw a boy.
B.I saw a child. What is the semantic relation of these two sentences?
选项
A、Entailment
B、Presupposition
C、Contradiction
D、Tautology
答案
A
解析
A蕴含(entail)B,从逻辑上讲,如果A为真,则B一定为真;如果A为假,那么B可能为真也可能为假。该题中,如果A句“我见到一个男孩”为真,那么B句“我见到一个孩子”则一定为真;如果A为假,即“我没有见到一个男孩”,那么B可真可假,因为有可能“我见到一个女孩”,因此A蕴含B。
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