问题
单项选择题
原子荧光分析中常用的检测器是（）
A.感光板
B.日盲光电倍增管
C.紫外光度检测器
D.示差折光检测器
答案
参考答案：B
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原子荧光分析中常用的检测器是（）
A.感光板
B.日盲光电倍增管
C.紫外光度检测器
D.示差折光检测器
参考答案：B
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| Cambridge (剑桥) is one of the top universities in the world, and it's a city as well. To the surprise of some visitors, there are no walls around the university. Classroom buildings, libraries and offices can be seen all over the city. Most of the members of the city are the students and teachers of thirty-one colleges (学院). It got its name "Cambridge" from the river called Cam and a bridge built over it. Before the university was founded 800 years ago, Cambridge was a developing town. It developed faster because of the opening of the railway and became a city in 1951. Now it has a population of more than one million. Many young students hope for the chance to study at Cambridge. Perhaps you'll be a member of Cambridge one day.
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