被分离组分在固定相中停留的时间
A. 峰高
B. 峰面积
C. 峰宽
D. 调整保留时间(t’R)
E. 峰位
It's better to teach the people out of work means to earn money( ) to provide money for them.
A. than
B. as
C. most
D. more
What is the most important factor in Indonesian doing business
A. Mysticism.
B. Religion.
C. Meditation.
D. Investment.
n→π*跃迁的吸收峰在
A. λmax<200nm(远紫外区)
B. 200nm左右
C. 200～400nm
D. λmax >210m
E. 100～500V
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