Nobody knows ___________ how many people are to be blamed for the coalmine accident, so the government is trying to find out the whole truth. ( 章节：3 难度：3)
- A、inwardly
- B、before
- C、cleverly
- D、precisely
正确答案:D
答案解析:有
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Nobody knows ___________ how many people are to be blamed for the coalmine accident, so the government is trying to find out the whole truth. ( 章节：3 难度：3)
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