Wang liang , ma shou - feng , he guo - guang , a hierarchical coordination model between traffic control and route guidance [ j ] . theory and practices of systems engineering , 2004 ( 6 ) : 126 - 133 王亮,马寿峰,贺国光一种交通控制与诱导递阶协调优化模型[ j ]北京:系统工程理论与实践, 2004 ( 6 ) : 126 133
Sara is a good student and although a bit shy , her english skills are strong . she holds one of the highest marks for spelling in the class and has a very good attitude . she is eager to learn and i enjoy having her in my class 王亮琪是一个很不错的学生,就是有一点点害羞,她渴求学习,有很好的英语学习技巧和学习态度,是我们平时拼写测试中取得最高分数的学生之一。