单项选择题


A．soon
B．then
C．later
D．first
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单项选择题
A．doneB．metC．reachedD．dealt
A．done
B．met
C．reached
D．dealt
单项选择题
In the first paragraph, the author draws an analogy between ______.
A．doing research and drawing a picture
B．research finding and pictures perspective
C．designing a research and making a quick drawing
D．a researcher and a painter
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