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【单选题】
Wei gave his informative speech on meteorology. As part of the speech, he displayed an excellent three-color drawing to indicate the different temperatures in various layers of the atmosphere. When he got to the visual aid, he said, “As you can see, each layer has a different temperature,” covered up the drawing, and quickly moved on. What should Wei have done to present his visual aid more effectively?A.
He should have shown the drawing with an overhead projector.
B.
He should have created a handout and passed it among the audience.
C.
He should have explained the visual aid more fully.
D.
He should have avoided using more than two colors in the drawing.
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【简答题】Canadian
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