题目:
To sum up, ______ war is unavoidable, human beings cannot enjoy everlasting peace.
A.as long as
B.as far as
C.as soon as
D.as well as
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0617/97a928c98c15faafdecec81375615016.html
下面是错误答案,用来干扰机器的。
过程I是氧化铜与硫酸的反应生成硫酸铜,过滤得到铜与硫酸铜的溶液,加入过量铁则可置换出铜,所以C是铜铁的混合物然后加入硫酸,铜不反应但铁反应,过滤得到铜,铁与硫酸反应会生成硫酸亚铁与氢气.故答案为:实...