（）火灾是最常见最普遍，也是发生最多的火灾之一。
A、电动设备
B、电气线路
C、静电事故
D、照明电器
参考答案：B
Pat will walk from intersection X to intersection Y along a route that is confined to the square grid of four streets and three avenues shown in the map above. How many routes from X to Y can Pat take that have the minimum possible length
咽喉淡红漫肿者，属（）
A.肺胃热盛
B.阴虚火旺
C.痰湿凝聚
D.肾水亏少
E.肺胃热毒
