The little girl ______ her heart out because she ______ her toy bear and believed she wasn’t ever going  to find it.

A．had cried ; lost

B．cried ; had lost

C．has cried ; has lost.

D．cries ; has lost

大气污染源排放的污染物按存在形态分为( )污染物。

A．颗粒物和固态

B．颗粒物和气态

C．固态和气态

D．颗粒物和悬浮