“烽火戏诸候”演绎了东方“不爱江山爱美人”的故事，故事的主角是(     )

“情绪是奔腾的洪水，理智是坚固的闸门”这句话告诉我们（     ）

南半球的等温线较北半球平直的主要原因是

近几年，雾霾问题日趋严重。下列做法中会加重雾霾的是（    ）

    Last year, some groups of students in their community (社区) made a survey about “How do people spend their free time? ” The following diagrams(图表) show some results of it:
    Diagram (1): Hours for people of different ages who surf the Internet in a week.

    Diagram (2): Different days people go to the library. (library attendance)

    Diagram (3): Different programs people like.