皮皮学，免费搜题
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【单选题】
硬皂是什么类型的皂?A.
钾皂
B.
钠皂
C.
镁皂
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Doctors in Boston studied 1,000 children to______.
A.
examine whether these children were healthy
B.
find out who smoke
C.
find out the condition of children whose mother smoke
【简答题】These children were in a state of virtual ________.
【简答题】Many Korean children and children of other nationalities have been adopted by U.S. Americans. Generally these children were reared in homes where the parents were not of the nationality of the adopted...
【简答题】大豆发芽前几乎不含维生素C。（ ）
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