不管是哪种信息资源管理方法，其目的都是为了提高（），帮助人们提高学习、工作和生产效率。
参考答案：信息资源的利用效益
Mary said she was looking forward as much to his return as he himself to ________ her. [ ]
A. have seen
B. saw
C. seeing
D. be seen
在低压工作中，最小检修距离不应小于（）米。
A.0.1米
B.0.2米
C.0.3米
D.0.4米
