与细菌致病性有关的结构或成分除外( )
A.菌毛B.核蛋白体C.荚膜D.鞭毛E.磷壁酸
参考答案:B
I have no________with people who are always complaining of their misfortunes.[ ]
A.devotion
B.belief
C.patience
D.balance
为什么给水泵采用平衡鼓?