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【单选题】
在进行照明用电设备的负荷计算时，应按下列（）规定计算设备功率。
A.
金属卤化物灯除光源的功率外，不必考虑镇流器的功率损耗
B.
低压卤钨灯除光源功率外，还应考虑变压器的功率损耗
C.
白炽灯、高压钠灯按光源标出的额定功率计算设备功率
D.
气体放电灯、金属卤化物灯除光源的功率外，还应考虑镇流器的功率损耗
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参考答案：
举一反三
【单选题】It might take 30 to 40 years for computer newspapers to replace traditional newspapers, because ______.
A.
it is technologically impossible now
B.
computer newspapers are too expensive
C.
there is strong resistance from both the general population and professional journalists
D.
traditional newspapers are easier to read
查看完整题目与答案
【单选题】On British Newspapers Besides the daily newspapers, there are a number of Sunday newspapers in Britain. Many of them are connected with the 'dailies', though not run by the same editor and his members...
A.
Right
B.
Wrong
C.
Not mentioned
查看完整题目与答案
【单选题】What is one of the ways of discovering the books that children prefer?
A.
by observing the children as they leave
B.
by recording the children's ages
C.
by noting which children buy books
D.
by noting which books children buy
查看完整题目与答案
【单选题】The best title for this passage is ______.
A.
Computer Newspapers Are Well Liked
B.
Newspapers of the Future will Likely Be on Computer
C.
Newspapers Are out of Fashion
D.
New Communications Technology
查看完整题目与答案
【单选题】听力原文： The portable, paperless e-newspapers would be a huge environmental win, eliminating the need to cut down trees and burn gasoline delivering the traditional folded parcels to readers driveways. L...
A.
It offers 24-hour newspaper service.
B.
It is only sold on Amazon's website in the US.
C.
It is a portable e-newspaper reading device.
D.
It can be rented at $5.99 to $14.99 monthly.
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【简答题】标志可以分为()和标志()标志两种类型。
查看完整题目与答案
【单选题】According to Marshall, parents prefer to spend money on their children mainly because ________.
A.
they can't afford the time to stay with their children
B.
they want to make up their guilt for their children
C.
they find it more convenient than going out with the children
D.
they feel it is hard to raise children without indulging them
查看完整题目与答案
【单选题】The children prefer camping in the mountains ______ an indoor activity.
A.
to
B.
than
C.
for
D.
with
查看完整题目与答案
【单选题】Most children __________ ice cream __________ fruit. [     ]
A.
would rather, to
B.
prefer, to
C.
prefer to, rather than
D.
like, better
查看完整题目与答案
【单选题】Most parents encourage their children to take an active part in social events, ______ those events do not interfere with their studies.
A.
lest
B.
so that
C.
unless
D.
provided
查看完整题目与答案
相关题目：
【单选题】It might take 30 to 40 years for computer newspapers to replace traditional newspapers, because ______.
A.
it is technologically impossible now
B.
computer newspapers are too expensive
C.
there is strong resistance from both the general population and professional journalists
D.
traditional newspapers are easier to read
查看完整题目与答案
【单选题】On British Newspapers Besides the daily newspapers, there are a number of Sunday newspapers in Britain. Many of them are connected with the 'dailies', though not run by the same editor and his members...
A.
Right
B.
Wrong
C.
Not mentioned
查看完整题目与答案
【单选题】What is one of the ways of discovering the books that children prefer?
A.
by observing the children as they leave
B.
by recording the children's ages
C.
by noting which children buy books
D.
by noting which books children buy
查看完整题目与答案
【单选题】The best title for this passage is ______.
A.
Computer Newspapers Are Well Liked
B.
Newspapers of the Future will Likely Be on Computer
C.
Newspapers Are out of Fashion
D.
New Communications Technology
查看完整题目与答案
【单选题】听力原文： The portable, paperless e-newspapers would be a huge environmental win, eliminating the need to cut down trees and burn gasoline delivering the traditional folded parcels to readers driveways. L...
A.
It offers 24-hour newspaper service.
B.
It is only sold on Amazon's website in the US.
C.
It is a portable e-newspaper reading device.
D.
It can be rented at $5.99 to $14.99 monthly.
查看完整题目与答案
【简答题】标志可以分为()和标志()标志两种类型。
查看完整题目与答案
【单选题】According to Marshall, parents prefer to spend money on their children mainly because ________.
A.
they can't afford the time to stay with their children
B.
they want to make up their guilt for their children
C.
they find it more convenient than going out with the children
D.
they feel it is hard to raise children without indulging them
查看完整题目与答案
【单选题】The children prefer camping in the mountains ______ an indoor activity.
A.
to
B.
than
C.
for
D.
with
查看完整题目与答案
【单选题】Most children __________ ice cream __________ fruit. [     ]
A.
would rather, to
B.
prefer, to
C.
prefer to, rather than
D.
like, better
查看完整题目与答案
【单选题】Most parents encourage their children to take an active part in social events, ______ those events do not interfere with their studies.
A.
lest
B.
so that
C.
unless
D.
provided
查看完整题目与答案
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