Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it.

A．be stopped to throw

B．be stopped from throwing

C．stop to throw

D．stop from throwing

2010年8月8日，_________舟曲县发生特大山洪泥石流灾害，造成重大的人员财物损失。[ ]

A．宁夏回族自治区        

B．浙江省         

C．青海省          

D．甘肃省