应收账款周转天数是反映上市公司（）的指标。 ["获利能力","经营能力","偿债能力","资本结构"]
Your data recovery strategy must meet the following requirements： Back up all data files and folders in C：\Data. Restore individual files and folders in C：\Data. Ensure that data is backed up to and restored from external media. What should you do？（） ["Use the Previous Versions feature to restore the files and folders.","Use the System Restore feature to perform backup and restore operations.","Use the NTBackup utility to back up and restore individual files and folders.","Use the Backup and Restore Center to back up and restore files."]
索道运行多长时间对抱索器主要零件进行第一次裂纹检查？
人机工程中，一般以（）为以据设计视觉显示器等有关部件，以减少人眼的疲劳。 ["静视野","动视野","注视野","综合视野"]
如何防范和化解网上银行面临的风险。
简述市盈率乘数法的基本思路
