Video conferencing is more environmental friendly than flying to the conference because______.
A. it cuts down travel times
B. it saves much energy
C. it saves a lot of money
D. it reduces presentations
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在平均年限法下，固定资产年折旧率是用年折旧额除以固定资产折旧总额求得的。()
Public transportation has the following advantages EXCEPT______.
A. easing congestion
B. getting to know the neighbors
C. saving you much time
D. having plenty of time to watch or read
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