全身性感染时,下列哪些因素可造成对机体的损害()。
A.内毒素
B.外毒素
C.病原菌
D.炎性介质
E.上述都不是
参考答案:A, B, C, D
对肝脏的胆管细胞癌的正确描述为()
A.质软,易血出
B.多沿淋巴道转移
C.肿瘤常见胆汁成分
D.灰白色,硬韧
E.易侵犯门静脉
On a certain scale of intensity, each increment of 10 in magnitude represents a tenfold increase in intensity. On this scale, an intensity corresponding to a magnitude of 165 is how many times an intensity corresponding to a magnitude of 125 ?()
A.40
B.100
C.400
D.1,000
E.10,000