阅读短文，并根据短文内容判断正（T），误（F）
There are four people in my family. My father is a policeman. His work is kind of dangerous.
He's very busy. He often has meals outside. Sometimes we can't see him all day. But I love him very much. My mother is a bank clerk, but she wants to be a reporter .She says her job is boring and being a report is interesting, because she can meet many interesting people .My brother is a waiter .He likes his work, because he thinks he can meet many new friends when he works.
I'm a middle school student .I study hard because I want to be teacher. I think it's not difficult for me.

如图Rt△O′A′B′是一平面图形的直观图，斜边O′B′=2，则这个平面图形的面积是（　　）

某学生在检验某溶液是否显酸性时，取出少量该溶液进行如下实验，其中错误的做法是（　　）

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