Learning in class is a way for students to study. Students sit in the classroom and小题1:to the teacher. Is this the小题2:way for students to learn something? Of course not. There is another way to learn, that is, students can teach小题3:.

How do you teach yourself ? The小题4:thing you must do is reading. Read something you are interested in,小题5:what you have to read. The second is that you must ask yourself小题6:. You can write down the questions. A clever student is usually good at小题7:questions. The third is to answer the questions yourself小题8:thinking hard, by reading the text or other books, and sometimes by asking other people. This is the way of teaching yourself. And you must do all these by yourself. If you keep小题9:like this for a long time, you are sure to小题10:in your study.

有关如图装置的叙述不正确的是(　　)

A．这是电解NaOH溶液的装置

B．该装置中Pt为正极，电极反应为O₂＋2H₂O＋4e^－＝4OH^－

C．该装置中Fe为负极，电极反应为Fe＋2OH^－＝Fe(OH)₂＋2e^－

D．这是一个原电池装置