第二节 单词拼写(共10小题，每小题１分，满分10分)
1. Jack was involved in a _____________(麻烦的) case and the police were looking into it.
2. Most tobacco companies have ______________(标准化) the length of cigarettes.
3. At the end of each term, teachers are required to _______（评估） the performance of students.
4. In the last _______ (分析), the responsibility must lie with the chief engineer.
5. The advances in science and technology are __________ (加速发展).
