问题
单项选择题
The whole program is well designed, but some details need further ______ by some experts.
A. proofing B. modifying C. demonstrating D. polishing
答案
参考答案：B
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The whole program is well designed, but some details need further ______ by some experts.
A. proofing B. modifying C. demonstrating D. polishing
参考答案：B