Task1: 2001年澳大利亚不同年龄男女年收入变化的曲线图,由2条曲线构成。Task2: Many people think the main purpose of public libraries is to provide books and it is the waste of resources
Task1: 2001年澳大利亚不同年龄男女年收入变化的曲线图,由2条曲线构成。Task2: Many people think the main purpose of public libraries is to provide books and it is the waste of resources