【单选题】“ __________ were you born?” “On May 12, 1985”. [ ]
【简答题】醚按与氧相连的两个烃基是否相同,可分为()和();醚的沸点比相应的醇(),而与分子质量相当的的()接近,其溶解度与相应的()相近。
【单选题】Were you born ______ May 21,1974? [ ]
【单选题】—When were you born? . —I was born ________the morning of May 7th,1995.
【简答题】醚按与氧相连的两个烃基是否相同,可分为 、 ;醚的沸点比相应的醇 。
【单选题】—When were you born? —____________.
【简答题】醚按与氧相连的两个烃基是否相同,可分为 、 ;醚的沸点比相应的醇 ,而其 与相应的醇相近。
【单选题】总质量小于等于3.5吨的汽车,其交变负荷测试时间为
【单选题】一When were you born? 一I was born ____ the morning of May 7, 1995. [ ]