—Did you_________the first place of the league match?

　　—Of course we did. We_________all the other teams.

A．beat; beat

B．beat; won

C．win; won

D．win; beat

将交流铁心线圈的铁心截面积增大时，其它条件不变则线圈中电流和磁通（）。

A.I不变、Φ增大

B.I增大、Φ不变

C.I减小、Φ减小

D.I减小、Φ不变