第11题: [多项选择]下列叙述正确的有()。 A. 高处作业在2~5m时,为一级高处作业,坠落半径为2m B. 高处作业在5~15m时,为二级高处作业,坠落半径为3m C. 高处作业在15~30m时,为三级高处作业,坠落半径为4m D. 高处作业大于30m时,为四级高处作业,坠落半径为5m E. 高处作业大于50m时,为五级高处作业,坠落半径为6m 参考答案:A, B, C, D
A. It has become hard to break. B. It has become soft for the plow. C. It is going to be baked though hard. D. It is going to be an ongoing thing to get wors 参考答案:A 答案解析:由于干旱,泥土结块,很难用犁来犁田。