View the Exhibit and examine the output of the query in different times when the following command runs in an RMAN sessions: RMAN> BACKUP DATABASE FILESPERSET 2; The database has seven data files. Why is the %_COMPLETE refreshed to 13.59 in the third output after reaching 88.77?（） [" Because the progress is reported for each data file"," Because the progress is reported for each backup set"," Because other RMAN sessions have issued the same BACKUP command"," Because new data files have been added to the database while the RMAN backup is in progre"]
按投标图纸计量是指根据施工图对完成的工程量进行计算，以确定支付工程量的方法。
（CSCP）控制盘动作，井口安全阀（SSV）和井下安全阀（SSSV）两方关闭时按以下哪种顺序进行：（） ["先SSSV后SSV","同时关闭","先SSV后SSSV"]
异步电动机的工作方式（定额）有连续、短时和（）等三种。 ["长时","断续","特长时","特短时"]
张某，因消化性溃疡穿孔拟行胃大部切除术，麻醉过程中出现心脏骤停，胸外心脏按压的正确位置是（） ["心尖区","胸骨下段","胸骨上段","胸骨左侧","胸骨右侧"]
农产品行业协会的主要职责？
