桥隧大修按照设备状态劣化等级、工程性质、复杂程度和工程量大小，可分为周期大修、（）和一般大修。
参考答案：重点大修
His friends insisted that Tony ______ nothing to do with drugs and they insisted that he ______ free immediately.
A．have, be set
B．had, was set
C．had, be set
D．have, was set
锚杆插入长度不得小于设计长度的（）%
A.85
B.90
C.95
D.100
