Jim: Good afternoon, Peter!
Peter: Good afternoon, Jim!
Jim: Do you like computer games?
Peter: Yes, I do.
Jim: Let’s play computer games.
Peter: That sounds good, but I don’t have a computer. Do you have one?
Jim: No, I don’t. But I have a TV. What about watching TV?
Peter: No, it’s boring. Let’s play tennis. I have two tennis rackets (网球拍) and a ball.
Jim: OK. Where are they?
Peter: On the sofa.
Jim: Get the ball and rackets. Let’s go and play.
Peter: OK. Let’s go.
小题1:Jim and Peter meet ________.
A．in the morning
B．in the afternoon
C．in the evening
D．at night小题2:What does Jim have?
A．A computer.
B．A tennis ball.
C．Two tennis rackets.
D．A TV.小题3:What does Peter think of watching TV?
A．Interesting (有趣的).
B．Relaxing (放松的).
C．Boring.
D．Great.小题4:Where is the tennis ball?
A．On the sofa.
B．In the box.
C．Under the bed.
D．On the table.小题5:What will Jim and Peter do?
A．Watch TV.
B．Play computer games.
C．Play basketball.
D．Play tennis.
（
为周期）产生的感应电动势为2V，则感应电动势的有效值为_____V．