皮皮学，免费搜题
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【判断题】
黏土矿物脱水反应阶段,高温煅烧会使无定型偏高岭土变成晶体,活性变差;故采用急速煅烧会使黏土矿物活性变差。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【单选题】An underwater hotel has opened in Africa，with its rooms＿on the bottom of a three－level floating building．
A.
to sit
B.
sit
C.
sitting
D.
sat
【简答题】改错题。 1. What do you think the movie? 2. The hotel has most friendly service of all. 3. Jack is the strongest in the brothers. 4. Which is the better of the three, the blue one, the green one or the re...
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