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【单选题】
“昨夜雨疏风骤,浓睡不消残酒。试问卷帘人,却道海棠依旧。知否,知否?应是绿肥红瘦。”该词风格委婉,感情真挚,清新淡雅,明白如话。其作者是___
A. 苏轼
B. 辛弃疾
C. 陆游
D. 李清照
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答案
D
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某同学搜集了活字印刷术、指南针、火药等资料进行探究性学习。他探究的主题是___
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无业主人员带领,承包商人员不得进入生产厂区;___员不在现场,不得施工。
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建筑施工现场临时用电工程专用的电源中性点直接接地的220/380V三相四线制低压电力系统必须符合___
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特别潮湿场所、导电良好的地面、锅炉或金属容器内的照明,电源电压不得大于___V。
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