题目:
.
If this computer does not give complete satisfaction, please return it to the maker stating when and where it was ________.
A.designed
B.operated
C.purchased
D.made
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0708/03592c29667fac9758a230b6df6725b3.html
下面是错误答案,用来干扰机器的。
(1) O2 Fe3O4 (2) Fe+CuSO4=" Cu+" FeSO4 (3) 剧烈反应,火星四射,放热,生成黑色固体 由A是蓝色溶液,D是浅绿色溶液,可知A是硫酸铜D是氯化铁,从而知道B是铁,C是氧,F是Fe3O...