距离保护一段()。
A.延时动作
B.受运行方式影响
C.保护范围不受运行方式的影响
参考答案:C
—Excuse me. Is there a bank near here?
—No, ___. But you can find one in Yang Fang Road.
A.there isn't
B.it isn't
C.they aren't
D.there is
深孔加工必须使用一些特殊的刀具,如()。
A、枪孔钻
B、深孔车刀
C、喷吸钻
D、深孔可浮动铰刀
E、深孔滚压工具