西南大学2009年博士研究生入学考试英语考试试卷三Part l Vocabulary (10 points)Directions: In this part there are 20 incomplete sentences. For each sentence there are four choices marked A, B, C and D. Choose the one that best completes the following sentences. Then blacken the corresponding letter on the Answer Sheet.1. Finding the cause of a disease will provide a _for research on a cure for it. A. prospect B. Incentive C. spur D. inducement2. Once you get to know your mista
