绝缘子串及金具应有良好的均压和（）措施。
A.调压
B.防电晕
C.防水
D.防火
参考答案：B
_____ lunch, I often have rice, fish and vegetables. [ ]
A. Of
B. For
C. As
D. Like
脑脓肿壁形成晚期是
A．4天后
B．7天后
C．10天后
D．14天后
E．21天后
