看图，完成下列对话。

Zhen Zhuo: I want     l     join      2           3    club.

Mr Black: Can you      4          5   _ drum?

Zhen Zhuo: No,       6            7    . Mr Black:      8           9    play       10   _ true.

Zhen Zhuo:      11  _,     12     can't.

Mr Black: Can you play the guitar?                                  

Zhen Zhuo: Sorry, I can't play      13           14     , either.

Mr Black: .   15           16           17      do?

Zhen Zhuo: I can play     18           19    very well.

Mr Black: OK.Let me see.Mm...That's good.You can join the music club.

Zhen Zhuo:  Thank you very much.        

设某电压u＝311sin（）V，则它的最大值为（）V，有效值为（）V，频率为（）Hz，周期为（），初相角为（）。