对库房内货物的堆垛高度，一般由所选用的堆垛设备来确定，若采用人工堆码，堆垛高度一般不超过（） ["1M","2M","3M","4M"]
The EMP table has some discrepancy in data entry with a particular employee ID. You execute the query as shown in the Exhibit to retrieve all versions of the row that exist between two SCNs. View the Exhibit. Which two statements about the results of the query shown in the Exhibit are correct?（） [" The LAST_SCN value in the first row is NULL, which means that the versions of the row still exist at SCN 6636300. LAST_SCN"," The LAST_SCN value in the second row in NULL, which means that the version of the row still exists at SCN 6636300."," The LAST_SCN value in the third row is 6636280, which means that the version of row exists above SCN 6636280."," The LAST_SCN value in the second row is NULL, which means that the version of the row no longer exists because it was deleted. LAST_SCN"]
请至少写出机组中三种用到接近开关地方,其功能作用分别是什么.
《中学教师专业标准》工作中的现实（），进行（）。
The Business Partner technical specialist is called to determine if the addition of host ports on an IBM System Storage DS8700 has improved users’ response times for an IBM System p server running SAP. How can the improvement be verified（） ["check the output of the "vmstat" command on LINUX","check the performance reports via Tivoli Storage Productivity Center for Data","check the performance reports via Tivoli Storage Productivity Center for Disk","check the output of the "iostat" command on AIX"]
超滤有何作用？
