鼻咽癌发病率较高的是A．白色人种B．黄色人种C．黑色人种D．棕色人种E．种族间无明显差异

作者: rantiku 人气: - 评论: 0

问题鼻咽癌发病率较高的是

选项 A．白色人种 B．黄色人种 C．黑色人种 D．棕色人种 E．种族间无明显差异

答案 B

解析

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