上海交大醫學院考博英語輔導班材料詞匯練習

詞匯練習
1. For many decades, economists have beenarguing about the role of ideas, innovation and _______ in economic growth.
a. ingathering b. ingredient c. ingratitude d. ingenuity
2. In thiscompany, absenteeism and frequent work stoppage have greatly ______ theefficiency of the firm operation.
a. cut off b. cut over c. cut up d. cut into
3. The day wasstar-crossed: Friday 13^th in the month of October, on the eve of thesecond anniversary of a ______ market crash.