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问题 单项选择题

下列哪一条不符合乳腺髓样癌的特征()

A.镜下肿瘤边界明显

B.有较多淋巴细胞浸润

C.肿瘤细胞大，呈多形性

D.腋窝淋巴结转移率高

E.预后比浸润性导管癌好

答案

参考答案：E

单项选择题

An analyst does research about option-free bond price change due to both duration and convexity impacts. The duration of an option-free bond is 9.92, and the convexity measure for that bond is 63.8. If interest rates increase by 200 basis points, the bond's percentage price change is closest to:（）

A. -22.39%

B. -18.56%

C. -17.29%
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问答题 简答题

乳腺囊性增生症的定义是什么？
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