2. 外语
  3. We ______ that diet is related to most types of cancer, but we don’t have definite proof.

We ______ that diet is related to most types of cancer, but we don’t have definite proof.

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问题 We ______ that diet is related to most types of cancer, but we don’t have definite proof.
选项 A、assure
B、suspect
C、ascertain
D、assert
答案B
解析 逻辑关系题：解释。既然我们还没有明确的证据，那我们应该只是怀疑了，因此答案选[B] suspect“怀疑；猜想”。[A]assure“确保，保证给”；[C]ascertain“确定，弄清”；[D]assert“断言；维护”；这三项都不符合句子的逻辑要求。
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大学英语六级

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