毒物排出体外的途径有
A．肾脏B．肝脏C．肺脏D．乳汁E．以上均正确
参考答案：E
In ______________, fashions changed and many factories closed down.
A．1830’s
B．1830s
C．the 1830s
D．the 1830s’
不是脑膜炎球菌特有的抗原成分是
A．荚膜多糖
B．外膜蛋白
C．脂寡糖
D．鞭毛
E．菌毛
