试题与答案

患者男性,40岁,右咽旁间隙脓肿,切开引流出大量灰白色稀薄腐臭脓液,为何种感染所致(

题型:单项选择题

题目:

患者男性,40岁,右咽旁间隙脓肿,切开引流出大量灰白色稀薄腐臭脓液,为何种感染所致()

A.大肠杆菌

B.变形链球菌

C.混合性感染

D.肺炎双球菌

E.绿脓杆菌

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:乙方案的成本系数=1108/(1437.8+1108+1081.8)=0.305。

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