学院 系 专业班级 姓名 学号(密封线外不要写姓名、学号、班级、密封线内不准答题，违者按零分计)密封线Directions: 1. All the answers should be written within the proper spaces provided below.2. All the questions should be answered in English except for special requirement.3. You should write neatly, clearly and without consultation to anyone elses papers.得分 I. Choose the best answer for each of the following statemen
