After some initial problems, acetone was successfully produced in quantity.解决了最初的一些问题之后，终于成功地制造出了大量丙酮。One might expect azomethane to have a Y structure similar to that of acetone ( CH 3 ) 2 CO.可以预期偶氮甲烷分子具有和丙酮 ( CH3 ) 2CO...
针对公众对该疾病的不断蔓延日益担忧，从而出台了这一举措。The move follows growing public concern over the spread of the disease.从政治角度来说，你认为这些举措有效吗？Politically speaking, do you think that these moves have been effective?一些分析家认为，他的这一政治举措很高明。Some analy...