CompTIA认证考试
Scheduled preventative maintenance visits should be carried out：（）A、after two unplanned service calls.B、according to manufacturers specifications.C、when the device is becoming unreliable.D、every sixty days.
题目
Scheduled preventative maintenance visits should be carried out：（）
- A、after two unplanned service calls.
- B、according to manufacturers specifications.
- C、when the device is becoming unreliable.
- D、every sixty days.
相似问题和答案
第1题：
114 The Cost Performance Index is computed as:
A. budget cost of work performed divided by actual cost of work performed
B. budget cost of work performed minus actual cost of work performed
C. budget cost of work performed minus budget cost of work scheduled
D. budget cost of work scheduled divided by budget cost of work performed
E. actual cost of work scheduled divided by budget cost of work performed
第2题：
After circling around the earth for three days, Shenzhou Spaceship received the command from the ground that _____（它着陆）as scheduled the next day. (land)
79. it (should) land
第3题：
You have summarized the project and note that , hours have been scheduled, , hours have been earned and , hours paid. The correct conclusion is:
A.The project is operating at a favorable cost efficiency ratio.
B.the project is spending more than planned
C.the project is behind schedule
D.the project is ahead of schedule
E.B and C
C
第4题：
A series of debates between lectures _____ scheduled for next weekend.
A、were
B、was
C、are
D、be
第5题：
This year is the year of mouse in the lunar().
A、time
B、calendar
C、schedule
D、timetable
第6题：
39 You have summarized the project and note that 28,000 hours have been scheduled, 25,000 hours have been earned and 26,000 hours paid. The correct conclusion is:
A. The project is operating at a favorable cost efficiency ratio.
B. the project is spending more than planned
C. the project is behind schedule
D. the project is ahead of schedule
E. B and C
第7题：
A.shorhand
B.scheme
C.schedule
D.sketch
第8题：
The Cost Performance Index is computed as:
A . budget cost of work performed divided by actual cost of work performed
B . budget cost of work performed minus actual cost of work performed
C . budget cost of work performed minus budget cost of work scheduled
D . budget cost of work scheduled divided by budget cost of work performed
E . actual cost of work scheduled divided by budget cost of work performed
第9题：
The plane is scheduled to () at 4 o'clock.
A、take up
B、take off
C、take on
D、take out
第10题：
A. /etc/var/spool
B. /var/spool/cron
C. /var/sched/jobs
D. /usr/sched/crontabs