20. – Would you like a cup of coffee? – (本题4.0分) A

20. – Would you like a cup of coffee? – (本题4.0分) A、 I dislike coffee. B、 It tas

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24. (判断题) 在常用检索技术中,逻辑非的基本作用是扩大检索范围,提高查全率 ( )(本题4.0

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40. ---- I have some trouble with this problem Cou

40. ---- I have some trouble with this problem Could you do me a favour?----- So

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53[填空题,0.7分] Fill in the blanks with appropriate p

53[填空题,0.7分] Fill in the blanks with appropriate pronoun: The ladder __________

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89[填空题,0.7分] Fill in the blanks with one of the it

89[填空题,0.7分] Fill in the blanks with one of the items given below:________ cloud

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