单选题 Smoking is so harmful to personal health that it kills people each year ______ than automobile accidents.

A、 seven more times
B、 seven times more
C、 over seven times
D、 seven times

【正确答案】 B

【答案解析】[解析] 倍数+more...than...为固定结构。通过例句可知no more than和not more than的区别：A whale is no more a fish than a horse is．鲸和马同样不是鱼。/I have not taken more than six courses this semester．我本学期选的课不多于6门。/I have taken no more than six courses this semester．我本学期只选了6门课。