搜搜考试网in what的用法第一句：Sunni militias turned against al-Qaeda and its
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in what的用法
第一句：Sunni militias turned against al-Qaeda and its militant allies two years ago in what was a key turning point in the campaign to quell the Iraqi insurgency.
第二句：He was killed on Thursday in what are still mysterious circumstances.
请问：这两个句子中“in what" 是什么用法?尤其是IN 在里面起什么作用?
请真正明白的回答.
第一句：Sunni militias turned against al-Qaeda and its militant allies two years ago in what was a key turning point in the campaign to quell the Iraqi insurgency.
第二句：He was killed on Thursday in what are still mysterious circumstances.
请问：这两个句子中“in what" 是什么用法?尤其是IN 在里面起什么作用?
请真正明白的回答.
in在这儿没特别之处,就普通介词,特别的是what,不是疑问词而是连接代词,它引导一宾语从句,意思相当于the things that.