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问题
问答题 简答题
两大常见口腔疾病是什么？
答案
参考答案：
两大常见口腔疾病是龋病和牙周病。
选择题
The police found that the house _____ and a lot of things _____.
A.has broken into; has been stolen
B. had broken into; had been stolen
C. has been broken into; stolen
D. had been broken into; stolen
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名词解释
循环冗余校验
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