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【单选题】
在色谱流出曲线上,相邻两峰间距离决定于:A.
两组分分配系数
B.
扩散速度
C.
理论板数
D.
塔板高度
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【简答题】如何通过性状特征鉴别杏仁核桃仁？
【判断题】For compound adjectives (like bad-tempered, old-fashioned), the stress is on the FIRST part.
A.
正确
B.
错误
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