问题
单项选择题 A1/A2型题
口腔恶性肿瘤中易早期发生颈淋巴转移的类型是（）
A.唇癌
B.龈癌
C.舌癌
D.颊癌
E.黑色素瘤
答案
参考答案：C
解析：口腔鳞状细胞癌的播散途径为直接扩展至邻近组织或通过淋巴道或血道转移。舌癌、口腔后部癌最易由淋巴道播散，在颈部淋巴结形成转移癌；而口腔前部癌，特别是唇癌则罕见转移。
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口腔恶性肿瘤中易早期发生颈淋巴转移的类型是（）
A.唇癌
B.龈癌
C.舌癌
D.颊癌
E.黑色素瘤
参考答案：C
解析：口腔鳞状细胞癌的播散途径为直接扩展至邻近组织或通过淋巴道或血道转移。舌癌、口腔后部癌最易由淋巴道播散，在颈部淋巴结形成转移癌；而口腔前部癌，特别是唇癌则罕见转移。
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hair. I like to play badminton. The man is my father. He is a clerk. He goes to work by bus. The woman is my mother. She is shorter than my father. She is a nurse. She goes to work on her bicycle. The little girl is my sister. She is only five years old. She likes to play with her dolls. My family likes to have fun together. We often go to the park to fly kites. We are a happy family. ( ) 1. Peter has short, brown hair. ( ) 2. Peter's father goes to work by bus. ( ) 3. Peter is younger than his sister. ( ) 4. Peter's mother works in a store. |