单选题:知识点:矽肺 典型的矽肺最重要和最常见的X线表现

题目内容:
知识点:矽肺
典型的矽肺最重要和最常见的X线表现 A.肺纹理增多,增粗
B.肺的阴影增大
C.密度较高的圆形和类圆形的阴影
D.胸膜粘连和肥厚
E.弥漫性肺气肿

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