题目内容：
Medical research has shown that the widespread use of cigarettes contributes ___ the increaseof cancers. (A) to
(B) for
(C) with
(D) towards
参考答案：
选择题：Medical research has shown that the widespread use
- 题目分类： Medical research has sho
- 题目类型：选择题
- 号外号外：注册会员即送体验阅读点！
(A) to
(B) for
(C) with
(D) towards