A:-3<a<-2
B:-3≤a<-2
C:-3≤a≤-2
D:-3<a≤-2
某质量监督局要对某厂6月份生产的三种型号的轿车进行抽检,已知6月份该厂共生产甲种轿车1 400辆,乙种轿车6 000辆,丙种轿车2 000辆,现采用分层抽样的方法抽取47辆进行检验,则这三种型号的轿车依次应抽取
Some damage has been caused u____ by people simply walking around the site and some has been caused deliberately.