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：南阳师范学院-大学英语（一）
- 题目类型：选择题
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(A) to
(B) for
(C) with
(D) towards