南非的行政首都比勒陀利亚（约东经28°）与中国首都北京（约东经116°）的经度相差为（　　）

阅读短文，下列问题

（C）

    I like sports. I have ten tennis balls, seven basketballs, four volleyballs and five soccer balls. I play tennis with my friends every day.

    I have five baseballs, five volleyballs, two soccer balls. I like ping-pong. It's easy for me. I often play ping-pong with my classmates. I also(也) have three ping-pong bats and some ping-pong balls.

    I don't have any(任何的) balls. I love sports, but I don't play them. I only watch them on TV.

如图所示，在两个相同的烧杯中分别盛有质量、初温都相等的水和牛奶，用两个相同酒精灯对其加热。

——Excuse me, the shirt is a bit small for me.

——Don't worry. I'll change it for a __________ one.

某同学制作了下面图示。根据历史事件的因果关系，空白方框内应填写(    )