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【多选题】
基因表达的方式有:A.
组成性表达
B.
诱导表达
C.
阻遏表达
D.
基本表达
E.
协调表达
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反馈参考答案：
举一反三
【简答题】气门的功用是控制进排气道的（）和（），它分为（）和（）两种。
【单选题】Which of the following statements is correct when you deliver a presentation?
A.
Hunch up and shuffle your feet.
B.
When you speak to a key point, you should make a pause.
C.
Speak in a monotone.
D.
Always look at your notes.
【单选题】Which of the following statements is correct when you deliver a presentation?
A.
When you speak to a key point, you should make a pause.
B.
Always look at your notes.
C.
Hunch up and shuffle your feet.
D.
Speak in a monotone.
【单选题】When you deliver the presentation, you should _____.
A.
give the audience amiable facial expressions
B.
keep your pitch and speed of your presentation
C.
mumble and avoid direct eye contacts with the audience
D.
speak quickly so as to finish the presentation efficiently
【简答题】如何加强学风建设。
【单选题】When you deliver the presentation, you should _____.
A.
mumble and avoid direct eye contacts with the audience
B.
speak quickly so as to finish the presentation efficiently
C.
keep your pitch and speed of your presentation
D.
give the audience amiable facial expressions
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