问题
选择题
_____ the burden of carrying heavy school bags, some schools introduced iBooks a few weeks ago. [ ]
A . Eliminating
B. Eliminated
C. To eliminate
D. Having eliminated
答案
答案：C
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_____ the burden of carrying heavy school bags, some schools introduced iBooks a few weeks ago. [ ]
A . Eliminating
B. Eliminated
C. To eliminate
D. Having eliminated
答案：C