Which of the following commands can be used to review the system error logs？（） errpt -a。 errpt -l。 errdemon -l。 syslogd -r。
工程量清单的主要作用有（） 工程量清单为投标人的投标竞争提供了一个平等和共同的基础。 工程量清单是建设工程计价的依据。 工程量清单是工程付款和结算的依据。 工程量清单是工程竣工决算的依据。 工程量清单是调整工程价款、处理工程索赔的依据。
A user is unable to determine the default system texteditor. How can the local administrator assist the user by identifying the default text editor for the system?（） Login as the user and run 'echo $ENV'.。 Login as root and run the 'env' command.。 Login as root and 'cat /etc/environment'.。 Login as the user and run the 'env' command.。
A file on the system ahs been lost, but the latest version is on a mksysb tape. The file is extracted from this mksysb tape by loading the tape. Which of the following indicates where the tape will be skipped forward?（） Third image, and resoting the file with the tar command。 Third image, and restoring the file with the dd command。 Fourth image, and restoring the file with the restore command。 Fourth image followed by the tar command。
肖像权
Which of the following commands can be used to clean up a failed software installation process？（）
