单项选择题

急性蜂窝织炎性阑尾炎的病变特点是阑尾
A、全层弥漫性中性粒细胞浸润
B、局部发生坏疽
C、黏膜坏死伴中性粒细胞浸润
D、闭塞、脓液潴留
E、纤维组织增生伴炎细胞浸润

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Which question about nursing assessment would best indicate that an incontinent man with a history of prostate enlargement might not be emptying his bladder adequately? ( )

A．Do you experience leaking of urine when you cough or sneeze?
B．Do you need help getting to the toilet?
C．Do you dribble urine constantly?
D．Do you feel a burning sensation when you pass urine?

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信用基差套利策略主要关注的是哪些市场间的价格偏差?

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B．信用债与国债
C．信用债与股票
D．不同期限的CDS