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问题
单项选择题
获得性中耳胆脂瘤的CT表现为()
A.鼓室内软组织占位
B.病变无明显增强
C.鼓膜穿孔
D.外耳道棘骨质破坏
E.鼓室腔扩大
答案
参考答案:
D
选择题
Not until the taxi disappeared in the distance ________her handbag was gone.
A.Mary had found
B.had Mary found
C.did Mary find
D.Mary found
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名词解释
灰度直方图
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