1521. 外设与接口 Peripheral Equipment & Interface
1522. PASCAL语言 Programming in PASCAL
1523. 算法设计与分析 Algorithmic Design & Analysis
1524. 音乐基础理论 Basis Theory of Music
1525. 精读 Perusal
1526. 口语训练 Oral Training
1527. 英语听说训练 English Practice on Listening & Speaking
1528. 口语 Oral Training
1529. 语法 Syntax
1530. 文体学 Style Science
