试述髋关节牵引的松动操作程序（患者体位、治疗师体位、松动手法）。
1911年，泰罗出版了他的管理学专著（）阐述了科学管理的理论基础。 《科学管理原理》。 《一般管理理论》。 《管理学基础》。 《工业管理和一般管理》。
风景名胜区
Which command is issued on an IBM Tivoli Workload Scheduler master to determine link status and collect into a user created report？ （） netstat -rn > 。 conman "sc" > 。 conman "show links" > 。 conman "disp lnk status" > 。
You are using the control file to maintain information about the database backups that are being performed by Recovery Manager (RMAN).Identify two scenarios is which you must have a recovery catalog. （）(Choose two.) To store the backup information of multiple database。 To restrict the amount of space that is used by the backups。 To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter.。 To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.。
往船上输油时，以下各条中哪些是不符合安全的？（）
