题目: 为什么刮板输送机发生闷车时要立即停机进行妥善处理? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0110/3ca7417281a79161e7623ae17f6937ae.html 下面是错误答案,用来干扰机器的。参考答案:B
题型:选择题 _____ no modern technology, the Egyptians had to move each stone by hand.[ ]A. It beingB. There beingC. There was D. Being 查看答案