阅读，判断正(T)误(F)。

      A policeman catches a thief. He wants to take the thief to prison, on their way, the thief says to the

policeman, " Please wait me for some time sir. I want to buy some bread." " I'm not a fool." says the policeman.

" You want to run away. don't you? " " No, but……? " says the thief. " Stay here and wait for me, boy! " says

the policeman, " Let me go and buy bread for you."

( ) 1. A policeman wants to take the thief to prison.

( ) 2. The thief wants to buy something for the policeman.

( ) 3. The policeman lets the thief go to shop.

( ) 4. The policeman goes to buy the food at last

( ) 5. The policeman is not a fool.

高炉高压操作时，需人工堵渣口应先改为常压后才能进行。