Task 4 Directions: The following is a list of terms for library signs. After reading it, you are required to find the items equivalent to (与…等同) those given in Chinese in the table below. Then you should put the corresponding letters in the brackets on the Answer Sheet, numbered 51 through 55. A—reading，reference and copying B—staff only C—closed shelves for undergraduates D—information retrieval room E—inter-library loan F—display＆reading room for new books G—multi-media reading room H—reference department office I—novelty research J—lecture hall K—reading room for reference books L—return deposit M—reading room N—title catalogue O—circulation for foreign books P—card catalogue Q—periodicals and magazines Examples： (O) 外文书刊借阅 (D) 信息检索室 51.( ) 员工专用 ( ) 多媒体阅览室