A. above
B. below
C. at
D. on
第1题:
The workers were resting with the machine ________.
A、run
B、running
C、to run
D、runs
第2题:
A.onceaday
B.onceaweek
C.everyminute
D.every30minutes
第3题:
A. Every 5 minutes
B. Every 90 seconds
C. Every 60 seconds
D. Every 30 seconds
第4题:
A) still late
B) too late
C) so late
D) past
第5题:
Software Engineering is best described as ( ).
A.the practice of designing, building, and maintaining off-the-shelf software from prefabricated parts
B.the practice of designing, building, and maintaining ad-hoc software without the use of formal methods
C.the practice of designing, building, and maintaining reliable and cost-effective software using standard techniques
D.the practice of designing, building, and maintaining fast and flexible software specifically for engineering applications
第6题:
Each life jacket light that has a non-replaceable power source must be replaced ______.
A.every 6 months after initial installation
B.every 12 months after initial installation
C.every 24 months after initial installation
D.on or before the expiration date of the power source