2017考博英語詞匯語法模擬試題及答案

詞匯語法題大多數博士研究生招生院校都有此類題型，考博生們在平時復習可以多練習找找語感。 &!O?h/&X3  
　　1. After people have learned that magnets attract things, centuries passed ____ they took note of the fact that magnets sometimes also repel things. )\VuN-d  
　　A. before B. until C. after D. since b?Uk%Z]+v  
　　2. He is off to Paris again tomorrow. He tells me that, with this journey, he ________ there and back twenty times. do.>Y}d   
　　A.will be B. will have been |6DJ5VFzD  
　　C.will go D. will have gone +Yq?:uBV  
　　3. Many ways have been found_____small and simple machine to process large and complicated machine parts. 7][fciZN  
　　A. by using B. to use C. using D. used =uNc\a
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