地龙的原动物科名是( )。
A．钜蚓科B．芫青科C．壁虎科D．鳖蠊科E．眼镜蛇科
参考答案：A
She had a p （） to give a talk about her experiences, because she didn't like the limelight.
A．disinclination
B．dissolution
C．dissidence
D．dissension
破伤风梭菌的致病因素是（）
A.内毒素
B.干扰素
C.外毒素
D.溶血素
E.分泌多种酶
