Medical research has shown that the widespread use of cigarettes contributes________the increase of cancers.

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问题 Medical research has shown that the widespread use of cigarettes contributes________the increase of cancers.

选项 A、towards
B、for
C、with
D、to

答案D

解析 本题考查固定搭配。contribute与介词to搭配,意为“有助于,促进,为……做贡献”,符合语义,故答案为D项。contribute-不与towards;or,with搭配使用,故排除其他三项。
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