根据短文判断正（T）误（F）。

     This is my bedroom. The books and dictionaries are in the bookcase. The photo of my family is

on the wall.  My backpack is on the chair.  And I have a baseball.  It's on the floor, between the

bookcase and the dresser.  A computer is on my desk, and a video tape is behind the computer.  

And I have a hat.  It's on my bed.

( )1. I have some books.  They are in the bookcase

( )2. The picture of my family is on the desk.    

( )3. There is a basketball on the floor.        

( )4. A chair is in my bedroom.                  

( )5. The computer is on my bed.                  

如图所示电路中，甲、乙两个毫安表的内阻均为6Ω，R₃＝12Ω，S断开时，AB之间电阻为3Ω,S闭合时，甲、乙两个毫安表的示数之比为1:2，求R₁、R₂的阻值各为多少？