问题
选择题
The key to _____ the problem is to meet the demand _____ by the customers. [ ]
A. solving, making
B. solving, made
C. solve, making
D. solve, made
答案
答案：B
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The key to _____ the problem is to meet the demand _____ by the customers. [ ]
A. solving, making
B. solving, made
C. solve, making
D. solve, made
答案：B