guarantee和proof有什么区别?
No matter how well you think you know this person,there are no --- that they have told the truth.
A.guarantees B.proofs C.possibilities D.phenomena
答案是A,我想问为什么不能选B
人气：260 ℃ 时间：2020-07-06 20:28:46
解答
proof是可以当做可数名字,也可以当做不可数名词的
而作为 “证据；证明” 解释 ,为不可数名词
因而英文之中并没有 there are no proofs的用法,所有的英文描述中都为there is no proof that.
顾选A
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