题目

A ______ has been launched (发起) by the netzens on the Net to ______ unhealthy information which does harm to young students. A. struggle; rid of                              B. campaign; get rid of  C. battle; rid of                            D. fight; get rid of 答案：B滑坡和泥石流灾害主要分布在我国的（　　） A、西南部B、东北部C、西北部D、东南部