安防系统的电源质量应满足下列要求:稳态频率偏移不大于 ()Hz。
A.±0.1
B.±0.2
C.±0.3
D.±0.5
第1题
A.to the finest detail
B.within the finest detail
C.on the finest details
D.on the finest details
第2题
Some people prefer classical music, but prefer rock music.
A.other
B.the other
C.an others
D.others
第3题
Some people prefer to remain anonymous when they call the police to report a crime.
A.undisturbed
B.unnoticed
C.unrecorded
D.unnamed
第5题
Some people prefer to remain anonymous when they call the police to report a crime.
A.undisturbed
B.unnoticed
C.unrecorded
D.unnamed
第6题
第8题
Some high ability people prefer a career overseas because of ______.
A.fierce competition at home
B.higher social status overseas
C.more opportunities abroad
D.monetary reward at home
第9题
The people that plan to take Sports Administrators course have to______.
A.have a current job relevant to sports administration
B.already hold a degree in sports administration
C.quit the original job
D.be Physical Education teachers
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