出现粪便黑色，有光泽，且粪便潜血试验呈阳性症状时，首先考虑的疾病是（） 阿米巴痢疾。 过敏性肠炎。 痔疮、肛裂。 胃、十二直肠溃疡伴出血。
An administrator is attempting to recover a filesystem that fails to manually unmount. The fsck command produces the following output： The current volume is： /dev/fslv02 File system is currently mounted. Invalid file system size in the primary superblock. Invalid file system size in the secondary superblock. Primary superblock is corrupt. Secondary superblock is corrupt. fsck： 0507-018 Superblock is corrupt and cannot be repaired. Both primary and secondary copies are corrupt.Cannot continue tried to mount Which steps will resolve the problem？（） Reboot the server into maintenance mode and run ‘fsck’ with the ‘-p’ parameter while the filesystem is mounted.。 Reboot the server into maintenance mode and run ‘fsck’ with the ‘-y’ parameter while the filesystem is unmounted.。 Force a umount of the filesystem with ‘umount -F /dev/fslv02’， and then run ‘fsck -p /dev/fslv02’ while the filesystem is unmounted.。 Force a umount of the filesystem by varying off the hosting volume group and then varyon the volume group. This will permit ‘fsck -y’ to be run against the failing filesystem.。
观察休克病情变化最简便有效的指标是（） 生命体征。 神志。 尿量。 皮肤色泽。 中心静脉压。
In one of your online transaction processing （OLTP） applications， most users frequently modify the values， including the key values， of the application tables. Some users generate application reports by using multiple application tables. What is the best table structure that you can use to gain optimal performance？（） heap table。 object table。 external table。 clustered table。 global temporary table。 indexorganized table （IOT）。
相对标高的零点正确的注写方式为（）。 ±0.000。 -0.000。 +0.000。 无特殊要求。
在企业生产流程再造中，确定关键流程的原则是（）。
