弹性变形能随载荷的去除而消失。
参考答案：对
采用无声破碎剂S．C．A法对（）破裂效果差。
A、薄形结构
B、临空面少及钢筋混凝土
C、浆砌片石
D、较多原生裂隙岩石
With reference to the Companies Law, explain the meaning and effect of the ultra vires rule in Cyprus. (10 marks)
