20℃时，向甲烧杯中加入50g水和25g固体A，向乙烧杯中加入25g水和25g固体B（A、B两种物质均不与水反应）．充分搅拌后，甲烧杯中固体剩余，乙烧杯中固体全部溶解．请回答下列问题：

    I have many favorite hobbies．I like____magazines and books．My parents like dancing．On Sunday in the morning they go to the park to do morning____．In the park they sing and dance but I am reading a____ book．On Sunday afternoon I am going to the bookshop to read____books．It is fun．Sometimes I play table tennis with grandparents．I also like taking____，too．They are interesting．

一辆货车箱是一个长方体，它的长是4米，宽是1.5米，高是4米，装满一车沙，卸后沙堆成一个高是5分米的圆锥形，它的底面积是多少平方米？

下表为冬至日北京、广州、漠河三地的正午太阳高度和昼长时间统计表。据此回答下面小题。