4月23日世界读书日来临之际，你所在班级举行读书活动，请你完成下面的三个任务。

“粗盐提纯”实验的下列基本操作中，操作规范的是（   ）

下列有关人体水分调节的叙述，正确的是(　　)

阅读理解Man or woman or a girl ?
One day, there is a man with long hair in the park. He is sitting on a chair, at this time an old man asks him, Is it a boy or a girl over there? She has long hair. I think she is a girl. Can you tell me?”
    “Yes. You are right. She is my daughter.”
    “Oh, I know. You must be the girl's mother.”
    “No， I'm her father.”The man is very angry（生气）.