单项选择题
A.脾 B.胰腺 C.心脏 D.肝脏 E.肺
A.3.0mm B.2.0mm C.1.5mm D.5.0mm E.4.0mm
A.癌仅限于黏膜层 B.癌侵及肌层 C.癌限于黏膜或黏膜下层 D.癌限于黏膜下层及肌层 E.癌浸及浆膜层
A.黏膜层 B.浆膜层 C.黏膜或黏膜下层 D.肌层 E.黏膜层，直径不超过5mm
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