题目

To tell you the truth, I’d rather read than watch TV; the programs seem _____ all the time.（  ） A. to get worse          B. to be getting worse C. to have got worse      D. getting worse   答案：B  卫生间所用洁厕灵中含有盐酸,如果不慎洒到大理石地面上，会发出嘶嘶声,并有气体产生.这种气体应是A.二氧化碳B.氢气C.氯气D.氧气