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【单选题】
土颗粒的大小及级配通常是由土的颗粒级配曲线来表示的,级配曲线越平缓则表示 。A.
大小较均匀，级配良好
B.
大小不均匀，级配不良
C.
大小不均匀，级配良好
D.
大小较均匀，级配不良
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