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【单选题】
凝胶色谱适用于分离()A.
极性大的成分
B.
离子性成分
C.
分子量不同的成分
D.
带电荷成分
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反馈参考答案：
举一反三
【多选题】Read through the following two paragraphs and find out what devices are employed in the second paragraph. You can have more than one choice. I knew him from the days of my extreme youth, because he ma...
A.
Use Dialogues
B.
Use Descriptive language
C.
Provide Supporting evidence
D.
Show Transitions
E.
Show Passage of Time
【多选题】Read through the following two paragraphs and find out what devices are employed in the second paragraph. You can have more than one choice. I knew him from the days of my extreme youth, because he ma...
A.
Use Dialogues
B.
Use Descriptive language
C.
Provide Supporting evidence
D.
Show Transitions
E.
Show Passage of Time
F.
Use Transitions
【简答题】I Fill in ea c h of t he blanks in t he following sen t ences wi t h a word listed below. Ch a n ge t he form whe r e necessary. (1*10=10 points) t ra p o ccup y m iserable d efe nd minor p er m issio...
【简答题】分别按韵母开头、韵尾分类，韵母各可分成哪些类。
【多选题】Read through the following two paragraphs and find out what devices are employed in the second paragraph. You can have more than one choice. I knew him from the days of my extreme youth, because he ma...
A.
Use Descriptive language
B.
Provide Supporting evidence
C.
Show Transitions
D.
Use Dialogues
E.
Show Passage of Time
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