题型:名词解释 There ______ more new buildings in my hometown in two years . A. are B. will have C. will be 查看答案
题型:名词解释 向已调节到平衡的托盘天平上的甲、乙两烧杯中分别注入相同质量、相同质量分数的稀硫酸.再向甲中加入m1 g铝片,向乙中加入m2 g锌粒.①若m1=m2,且两金属完全溶解,则天平指针______;理由是______.②若两烧杯中金属都有剩余,且指针不偏转,则m1:m2=______.③若两烧杯中金属完全溶解,且指针不偏转,则m1:m2=______. 查看答案