读一读Tom的日记，根据日记内容，选择正确的答案。

June 8, Friday    rainy

    Our school had an English Fun Day today. My classmates and l went to the School Hall to play English games. Some Grade 6 students were helpers and they showed us how to play the games.

    Peter and l were in a spelling(拼写) game. He made many mistakes but I did very well. I got some sweets and we shared(分享) them.

We did not like the matching(配对) game. We had to match some words to pictures. It was not difficult but boring.

    We liked the reading game. I was slow when I read out the sentences. But Peter was very quick. He won the first prize. Miss Wong gave him a photo album. He can put his photos in. We had a good time.

关于我国工业分布特点的说法，正确的是（    ）

如图是核电站发电过程的示意图．请简单说明发电全过程中的能量转换顺序．

小军家的玩具店进了一箱除颜色外都相同的塑料球共1000个，小军将箱中的球搅匀后，随机摸出一个球记下颜色，放回箱中；搅匀后再随机摸出一个球记下颜色，放回箱中；…多次重复上述实验后，发现摸到红球的频率逐渐稳定在0.2，由此可以估计纸箱内红球的个数约是　 ____个．