单项选择题
A.0.2% B.0.5% C.1% D.2% E.3%
A.3% B.6% C.10% D.15% E.20%
A.0.5kg/cm2 B.1~1.5kg/cm2 C.5kg/cm2 D.15kg/cm2 E.10kg/cm2
A.单一感染 B.混合感染 C.继发感染 D.再感染 E.隐性感染
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