这是该国面临的最紧迫的问题之一。It is one of the most pressing problems facing this country.最紧迫的问题是防洪.The most immediate problem is to control the floods.我有更紧迫的事情要做.I have more pressing things to attend to....
研究了4甲基愈创木酚一步氧化法合成香兰素的新工艺.A new method of synthesis of Vanillin from 2 methoxy 4 methyl phenol was studied.邻苯三酚自氧化法适于测定sod活性 吗 ?Can be used to assay SOD activity by means of pyrogallol oxidation?催化部分氧化法可以副产更多的蒸汽而消耗更少的蒸汽.C...