问题
选择题
If all business goes paperless, at least one million tons of paper will be ______ a year. [ ]
A. used
B. saved
C. copied
D. offered
答案
答案：B
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If all business goes paperless, at least one million tons of paper will be ______ a year. [ ]
A. used
B. saved
C. copied
D. offered
答案：B