【单选题】
He is not seriously ill, but only a ____ headache.
A. obvious
B. delicate
C. slight
D. temporary
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答案
C
解析
暂无解析
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下列长期储存发生自燃的煤是___。
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发现煤斗内的煤有自燃现象时,应立即采取措施灭火,煤斗内如有燃着或冒烟的煤时应___。
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设备的一级保养以操作人员为主,维修人员为辅。对设备进行局部检查时设备一般每运行___h 进行一次一般保养。
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燃用非单一品种燃煤的火电厂,燃煤入炉前应做好___工作。
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