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举一反三
【单选题】绕击率与避雷线对边相导线的保护角、杆塔高度的关系是（）
A.
与保护角成正比，与杆塔高度成正比
B.
与保护角成正比，与杆塔高度成反比
C.
与保护角成反比，与杆塔高度成正比
D.
与保护角成反比，与杆塔高度成反比
【单选题】Americans with small families own a small car or a large one. If both parents are working, they usually have two cars. If the family is large, one of the cars is sold and they will buy a van (住房汽车). S...
A.
They bought two cars.
B.
They sold two old cars.
C.
They sold a van.
【单选题】A．防治呼吸道梗阻B．分区大片植皮C．保护角膜D．尽快而充分地冲洗E．损伤区域切勿受压 颜面部深度烧伤处理要点
A.
A．
B.
B．
C.
C．
D.
D．
E.
E．