孕震断层
参考答案：
是指震源体受构造力作用积累成熟的过程，震源体在应力积累期震源构造处在闭锁状态，当应力积累超过岩石的强度极限时，岩石发生破裂，地震发生。
单词拼写 (共5小题; 每小题1分,满分5分)
小题1:The cell phone s________ was poor, and my calls kept getting cut off.
小题2:I would a_________ it if you could come and help me tidy up the garden.
小题3:P________, I think he is a very good man, though you may not agree.
小题4:It is o_________ that he has been at home because he phoned us with the home telephone.
小题5:He c________ me $15 for repairing the watch, which was too much.
绑扎钢筋骨架必须使用钢筋绑扎架。( )
