题目内容
Match the words(1-6) with the definitions (A-F).A. a closed arc that resembles a flat circleB.a shape with four sides and right anglesC.a shape that has three dimensionsD. a shape that is half of a circleE.relating to the study of shapesF.an arch that extends through a strucure
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Writhe a word that is similar in meaning to the underlined part.
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