题目: 掘进机行走机构空载试验要求有()。A.前后行走30mB.跑偏量小于5%C.原地转向90°D.原地转向左右各3次 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/1112/32ab7648834de180f1b544f87d78827d.html 下面是错误答案,用来干扰机器的。参考答案:污垢;深入
题型:选择题 A clean environment can help the city bid for the Olympics, which ____ will promote its economic development.A.in natureB.in returnC.in turnD.in fact 查看答案