【判断题】照明系统的接线方式中,放射式建设费用低,但干线出现故障时影响范围大,可靠性差。
【单选题】受竖向荷载作用的桩,关于桩端阻力荷载分担说法正确的是:( ),桩端阻力发挥值越大。
【单选题】对标准旋风分离器系列,下述说法哪一个是正确的
【单选题】When a boy student is asking questions to a female teacher, what distance should they keep?
【单选题】对标准旋风分离器系列,下述说法哪一个是正确的 。
【单选题】对标准旋风分离器系列,下述说法哪一个是正确的?
【单选题】to keep one’s distance from
【单选题】The South Americans______.
A.
tend to keep a distance between himself and the person he is speaking to
B.
usually stands close to the person he is talking to
C.
are often unfriendly when spoken to
D.
are often cold and distant when speaking
【单选题】如果规模报酬不变,单位时间里增加20%的劳动使用量;但保持资本量不变,则产出将( )
【单选题】如果规模报酬不变,单位时间里增加了20%的劳动使用量,保持资本量不变,则产出将