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【判断题】
氢氟酸洗废液一般采用氟化钙沉淀法处理
A.
正确
B.
错误
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举报参考答案：
举一反三
【单选题】粉剂由二氧化硅、三氧化二铝和氟化钙组成的粘固粉是（）
A.
氧化锌丁香油粘固粉
B.
聚羧酸锌粘固粉
C.
玻璃离子粘固粉
D.
磷酸锌粘固粉
E.
复合树脂
【多选题】使用氢氟酸,必须( )
A.
使用搪瓷器皿
B.
使用玻璃器皿
C.
稀释时戴手套
D.
通风橱内稀释,皮肤接触后立即用大量流水作长时间彻底冲洗
E.
皮肤接触后立即用大量流水作长时间彻底冲洗
【单选题】A subject which seems to have been insufficiently studied by doctors and psychologists is the influence of geography and climate on the psychological and physical health of mankind. Them seems no doub...
A.
focus on some unknown aspects
B.
be pursued on a larger scale
C.
go much deeper
D.
be carried out within a larger scope
相关题目：
【单选题】粉剂由二氧化硅、三氧化二铝和氟化钙组成的粘固粉是（）
A.
氧化锌丁香油粘固粉
B.
聚羧酸锌粘固粉
C.
玻璃离子粘固粉
D.
磷酸锌粘固粉
E.
复合树脂
【多选题】使用氢氟酸,必须( )
A.
使用搪瓷器皿
B.
使用玻璃器皿
C.
稀释时戴手套
D.
通风橱内稀释,皮肤接触后立即用大量流水作长时间彻底冲洗
E.
皮肤接触后立即用大量流水作长时间彻底冲洗
【单选题】A subject which seems to have been insufficiently studied by doctors and psychologists is the influence of geography and climate on the psychological and physical health of mankind. Them seems no doub...
A.
focus on some unknown aspects
B.
be pursued on a larger scale
C.
go much deeper
D.
be carried out within a larger scope
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