题目内容

电缆绝缘有油纸绝缘,挤包绝缘和压力电缆绝缘三种。

A. 正确
B. 错误

查看答案
更多问题

在东方电机厂QFSN—300—2型汽轮发电机启动、升压、并列过程中,应进行哪些操作项目?

Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt: RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON; After executing this command, in which of the following cases will RMAN make an auto-backup of the control file? ()

A. when you change the name of a datafile
B. when you drop a table from the database
C. when you take an export of the database
D. when you back up the database using OS utilities
E. when you issue an ALTER SYSTEM SWITCH LOGFILE statement
F. when you issue a BACKUP command from inside the RMAN run block

乳癌患者施行放射治疗后,局部皮肤轻度肿胀,正确的处理是()。

A. 局部理疗
B. 局部热敷
C. 保持局部清洁干燥
D. 70%酒精湿敷
E. 以上都不对

如果计算机连在一个网络下,点击()图标可以查看和操作网络资源。

A. 网上邻居
B. 我的文档
C. 我的电脑
D. internet

答案查题题库