"Tom has been to New York" entails______.

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问题 "Tom has been to New York" entails______.

选项 A、Tom has been to America
B、Tom has never been to USA
C、Tom is not American
D、none of the above

答案A

解析 “Tom去过纽约”蕴含了“Tom去过美国”,因为如果前一句成立,则后一句一定成立,而如果前一句不成立,后一句可能成立,可能不成立。
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