问题
单项选择题
用实验方法测定某金属配合物的摩尔吸收系数,测定值的大小决定于()。
A.配合物的浓度
B.配合物的性质
C.比色皿的厚度
D.入射光强度
答案
参考答案:B
用实验方法测定某金属配合物的摩尔吸收系数,测定值的大小决定于()。
A.配合物的浓度
B.配合物的性质
C.比色皿的厚度
D.入射光强度
参考答案:B
根据对话内容及方框中所给的句子补全对话。其中有一项是多余的。 | |
A: Excuse me, sir. 1 . B: Yes. What can I do for you, young man? A: 2 . Some of my classmates want to go to Beijing for a short visit. I'd like to look for some sightseeing information. I want to know if you have a four days' tour. B: We certainly do. There are quite many tours. 3 . A: Well, we are going to visit some famous places such as the Great Wall, the Summer Palace and so on. B: They are all places of great interest in Beijing. 4 . A: Well, today is June 24. And we still have three more days before finishing the final exam. 5 . B: Oh, I see. Well, there are two kinds of tours: package and self-service. A: I think we'II take the self-service. B: All right. Here is the information about the tour and it will help you. A: Thank you very much. B: You are welcome.
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