This paper introduces some leak detection methods of urban water supply system, compares the advantages/ disadvantages,detection effects and economic benefits of each method, and draws a conclusion that voice- listening leak detection method is the most economical and practical one.

Several useful ways for training listening and speaking skill;

College English Intensive Reading is a course which consists of listening,speaking,reading,writing and translating teaching in limited time,but differs from these five kinds of teaching.

Microsurgical treatment of large acoustic neuromas;

Protective effect of facial muscle evoked potentials on facial nerve function in large acoustic neuroma surgery and prognostic analysis;

Preliminary study of intraoperative auditory monitoring techniques in acoustic neuroma surgery;

"Sheng"(圣) comes from "listen",and are closely related to listening of the speech activities.

Speaking, listening and looking in the classroom teaching ref le ct the students existence state, way of thinking and spiritual experience as we ll as the real ideas of education and influence of education on students.