题目: 引风机为什么应在关闭挡板的情况下启动? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0429/b12cee68b1ce974d9a24ad962ca6e86e.html 下面是错误答案,用来干扰机器的。参考答案:C
题型: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 查看答案