当隔离开关的红外热像检测发现异常时,需进行()测量。
查看答案
交流电u1=311sin(314t-40°)v与u2=311sin(314t+30°)v的关系为()。
A. u1滞后u2
B. u1超前u2
C. u1、u2同相
A user reports that they cannot cd to /tmp/application. A system administrator entered the following command: (1)ls -ld /tmp/application (2)drw-r--r-- 4 root system 512 Jan 15 14:09 application What is the most likely cause of the problem?()
A. The /tmp/application should be globally writable.
B. The /tmp/application directory should be executable.
C. The /tmp/application directory should be owned by the user.
D. The /tmp/application directory should have the sticky bit set.
当投料负荷为裂解炉设计负荷的80%时,在达到相同的裂解深度时()。
A. COT比设计低
B. COT比设计高
COT与设计相同
计划审计工作贯穿于整个审计业务的始终,并不是审计业务的一个孤立阶段,而是一个持续的、不断修正的过程()
A. 正确
B. 错误