【单选题】I suggest our website immediately.
【单选题】I suggest ______ our website immediately.
【简答题】在一根正相分配色谱柱上,当用体积比为1:1的氯仿和正己烷为流动相时,样品的保留时间是29.1min,不被保留组分的保留时间是1.05min。试计算:样品物质的容量因子 k’ 。
【简答题】已知向量 a = (−2,3) , b = (1,1) ; 求 a + b
【单选题】()on our past experience , we suggest establishing a branch office in that city .
【简答题】在一根正相分配色谱柱上,当用体积比为 1 : 1 的氯仿和正己烷为流动相时,样品的保留时间是 29.1min ,不被保留组分的保留时间是 1.05 min 。试计算:样品物质的容量因子。
【单选题】I suggest our hydrating package.
【简答题】Can I suggest _________ at our office, say, at the end of the month?