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
Given： foo and bar are public references available to many other threads， foo refers to a Thread and bar is an Object. The thread foo is currently executing bar.wait（）. From another thread， what provides the most reliable way to ensure that foo will stop executing wait（）？（） foo.notify（）；。 bar.notify（）；。 foo.notifyAll（）；。 Thread.notify（）；。 bar.notifyAll（）；。 Object.notify（）；。
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.。
高温菌和中温菌在低温环境中的代谢能力为什么减弱？
电子商务的最大信息载体是（）
