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【单选题】
How to have a good understanding of the audience before a presentation?
A.
read their papers
B.
know their knowledge levels
C.
yze their needs
D.
all the above three choices
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】To organize information in a reasonable logical sequence doesn’t mean that ______.
A.
important points are repeated randomly
B.
ideas are closely related to each other
C.
an experiment is described according to its process
D.
introduction is developed from general research background