They asked ____ or not they could help us .A.if B.whether为什么选B不选A,if不是也有是否的意思吗?
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They asked ____ or not they could help us .A.if B.whether
为什么选B不选A,if不是也有是否的意思吗?
if的确有是否的意思,所以后面 or not 完全是多余的,用if的话直接就是 They asked if they could help us.而且很少看到这样用,if 后面接not的话,就是表示否定,if not,的意思是如果没有,如果不是.不再有是否的意思.
因为if = whether or not
如果是if or not 意思就混乱了, 意思差不多就是“是否是否”了
您好,很高兴为您
whether or not 固定搭配
若题目中无or not, 则也可选if
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您好,很高兴为您
whether or not 固定搭配
若题目中无or not, 则也可选if
-------------------------------
★倾心解答★愿您满意★
★欢迎追问★敬请采纳★
-------------------------------
呼吁:共同抵制不处理提问者
行动:坚决拒绝为其二次解答
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