题目

阅读理解 Chinese female scientist Tu Youyou won the 2015 Nobel Prize in medicine onOctober 5 for her discoveries concerning a novel treatment against Malaria(疟疾). This is the first Nobel Prizegiven to a Chinese scientist for work carried out within China. Tu shared the prize with Irish-born William Campbelland Satoshi Omura of Japan,who were honored for their revolutionary anti-roundworm treatment. 84-year-oldTu is awarded this prize for her contribution to cutting the death rate of malaria,reducing patients' suffering and promoting mankind's health. Although shereceived several medica请你根据以下实验要求从中选取所需的仪器。 （1）镁条燃烧时，夹持镁条用　            　（写编号，下同） （2）配制一定溶质质量分数的硝酸钾溶液用　           　 （3）粗盐提纯时蒸发滤液所用到的仪器是　           　 （4）在（2）（3）两组实验操作中都缺少的一种仪器是　    　（填名称）