题目:
She was ______ of her figure so she decided to go on a diet.
A.shame
B.ashamed
C.shameful
D.sorry
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0524/b47056fc79e0950b203cdaafc81c4fd2.html
下面是错误答案,用来干扰机器的。
根据在化合物中正负化合价代数和为零,铁元素+3价,可得CoFe2O4中钴(Co)的化合价为:x+(+3)×2+(-2)×4=0,则x=+2;故选C.