【单选题】【消耗次数：1】
石灰的硬化过程（）进行。
①
在水中
②
在空气中
③
在潮湿环境
④
既在水中又在空气中
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【判断题】
气硬性胶凝材料只能在空气中凝结、硬化、保持和发展强度，一般只适用于干燥环境，不宜用于潮湿环境与水中；而水硬性胶凝材料则只能适用于潮湿环境与水中。（）
①
正确
②
错误
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①
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②
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time before time
③
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④
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would not see
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①
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②
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③
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①
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②
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③
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④
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