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【单选题】
《化学品安全技术说明书》(MSDS)提供的信息方面各国虽有一些细微的差别,但总体上文件的格式还是基本一致的,这些内容应包括:1危险化学品组分、理化特性;2安全操作和使用方法;3防护方法;4污水处理和排放方法-A.
①~④
B.
①②④
C.
①~③
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【单选题】下列情况属于医院感染（ ）
A.
皮肤黏膜开放性伤口只有细菌定植而无炎症表现
B.
由于创伤或非生物性因子刺激而产生的炎症表现
C.
新生儿经胎盘获得(出生后48h内发病)的感染，如单独疱疹、弓形体病、水痘等
D.
病人原有的慢性感染在医院内急性发作
E.
医院工作人员在医院内获得的感染
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