细菌内毒素的成分是() ["A．H抗原","B．肽聚糖","C．脂多糖","D．O抗原","E．K抗原"]
可用作高压蒸汽灭菌效果检测的细菌() ["A．大肠埃希菌","B．金黄色葡萄球菌","C．嗜热脂肪芽胞杆菌","D．嗜麦芽窄食单胞菌","E．粘质沙雷菌"]
尿液标本作L型菌培养时，培养基中加入20%蔗糖的原因是() ["A．提供高营养","B．使尿中蛋白质变性","C．稀释尿液","D．保持高渗环境","E．中和尿液的酸度"]
22s
KIA琼脂一般不用于观察() ["A．乳糖发酵","B．葡萄糖发酵","C．硫化氢产生","D．动力","E．产气现象"]
41s
