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【单选题】
选择固定液的基本原则是A.
相似
B.
待测组分分子量
C.
组分在两相的分配
D.
流动相分子量
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反馈参考答案：
举一反三
【简答题】阐述企业物流的结构。
【单选题】Let's go to the ______________ to ______________. [ ]
A.
market, watch a movie
B.
library, read books
C.
part, panda
D.
farm, chicken
【简答题】测得某一蛋白质样品的氮含量为0.2克,此样品约含蛋白质多少克?____ A.2.00g B1.25g C.3.00g D.6.25g
【单选题】Last time we learnt part of the text. Today let's go on ______ it.
A.
to study
B.
study
C.
studying
【单选题】Directions : This part is to test your listening ability. It consists of 4 sections. Section A Directions : This section is to test your ability to give proper responses. There are 7 recorded question...
A.
Let's go now.
B.
Don't mention it.
C.
Sit down, please.
D.
Yes, I am.
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