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【判断题】
重铬酸钾法测定水中化学需氧量所用的试剂主要有重铬酸钾标准滴定溶液、“硫酸银硫酸试剂”和硫酸亚铁铵标准滴定溶液。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】— Do you mind my parking here? The parking lot is full. — ______. Look at the sign! It says, “No Parking!”
A.
You’d better not
B.
No, I don’t mind
C.
It doesn’t matter
D.
Yes, go ahead
【简答题】1972 年 提出生物膜的“流动镶嵌模型”,该模型突出了膜的 性和膜蛋白分布的 性。
【简答题】Many residents objected to _______ in thecommunity parking lotA. being charged for parking B. be charged with parking C. be charged for parking D. charging for parking
【单选题】Many residents objected to _______ in the community parking lot.
A.
being charged for parking
B.
be charged with parking
C.
be charged for parking
D.
charging for parking
【单选题】Many residents objected to _______ in the community parking lot.
A.
be charged for parking
B.
being charged for parking
C.
be charged with parking
D.
charging for parking
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