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【单选题】
中国药典检查维生素 C 中的铁盐和铜盐,采用的方法是A.
沉淀滴定法
B.
比色法
C.
氧化还原滴定法
D.
紫外分光光度法
E.
原子吸收分光光度法
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反馈参考答案：
举一反三
【判断题】In order to make a fair description of the characteristics of a nation , the author thinks it is important to make a tour to the country first and examine the manners of these people with great care a...
A.
正确
B.
错误
【简答题】等价类划分就是将输入数据按照输入需求划分为若干个子集，这些子集称为A. 等价类
【简答题】The club _________ very professionally. Last month, one of the new machines broke, but it _________ right away. All the machines ________ several times a day, and the pool _________ in great condit...
【简答题】If you can secure the evening of a local in your destination town, you can get quite an amazing tour of the area and see things that tourists may never find. It isn’t that hard to invite a local to be...
【单选题】The tour of our country by the foreign visitors _______ on the Great Wall and other historical spots.
A.
confirmed
B.
focused
C.
instructed
D.
hampered
【判断题】In order to make a fair description of the characteristics of a nation, the author thinks it is important to make a tour to the country first and examine the manners of these people with great care an...
A.
正确
B.
错误
【简答题】等价类划分就是将输入数据按照输入需求划分为若干个子集,这些子集称为 。
【简答题】A tour of the Great Wall is an immensely _______ experience.
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