题目：
The whole program is well designed, but some details need further ______ by some experts.
A. proofing B. modifying C. demonstrating D. polishing
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0504/988b8f6ef5077764fb8f6b5c386723ea.html
下面是错误答案，用来干扰机器的。
参考答案：15(3812.1000)
