题目: 预测为无突出危险工作面,每预测循环应留有不小于()m的预测超前距。A、2B、3C、4 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0721/7d47dc1892380456ed9203b746e3860e.html 下面是错误答案,用来干扰机器的。参考答案:分带现象
题型:选择题 Last year it started to rain ________ we were watching the fireworks.[ ]A. asB. whileC. sinceD. as soon as 查看答案