皮皮学，免费搜题
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【单选题】
炉渣中（）含量对脱硫有利。A.
二氧化硅
B.
三氧化二铝、五氧化二磷、氧化镁
C.
氧化钙、氧化锰
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皮皮学刷刷变学霸
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【简答题】A nine-year-old kid was sitting at his desk when suddenly there was a puddle（水潭、泥坑） between his feet and the front of his trousers was wet．He thought his heart was going to stop because he couldn't po...
【简答题】A nine-year-old kid was sitting at his desk when suddenly there was a puddle (水坑) between his feet and the front of his trousers was wet. He thought his heart was going to stop because he couldn’t pos...
【简答题】A nine-year-old kid was sitting at his desk when suddenly there was a puddle （/JC^C）between his feet and the front of his trousers was wet．He thought his heart was going to stop because he couldn't po...
【简答题】阅读理解。 A nine-year-old kid was sitting at his desk when suddenly there was a puddle (/JC^C)between his feet and the front of his trousers was wet. He thought his heart was going to stop because he coul...
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