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【单选题】
关于幼儿触觉的表述,下列选项中( )是正确的。A.
口腔触觉作为探索手段，可以认识物体
B.
口腔触觉作为探索手段晚于手的触觉
C.
眼口协调动作的出现，是触觉发展的里程碑
D.
能够知觉到手的位置，主要是视觉
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