There was a loud cry from the backstage immediately after the concert ended, _______?
A：wasn't there
B：was there
C：didn't it
D：did it
I_____ a girl.
已知△ABC中，∠A=∠B+∠C，则△ABC的形状是（ ）
有经验的果农，常在果树开花的时候，放养蜜蜂。这样做的意义不包括（ ）。
