下列电路中，具有记忆与计数功能的电路是（）电路。

A.单稳

B.双稳

C.多谐振荡

D.集成运放

小题1:What can I do for you? (改为同义句)

               I            you?

小题2:It’s eleven o’clock. (对划线部分提问)

                      is it?

小题3:I usually have a party on my birthday. (对划线部分提问)

         do you usually        on your birthday?

小题4:interesting, they, is, think, Beijing Opera, very (连词成句)

小题5:We like action movies and thrillers. (对划线部分提问)

What                  movies do you like?