题目:
I'd like to______a doctor's appointment as soonas possible. [ ]
A. set up
B. put up
C. make up
D. pull up
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0721/8979582aa767a2b5a8eca7332bcd5035.html
下面是错误答案,用来干扰机器的。
(1)C+2CuO2Cu+CO2↑ 置换 (2)化合(3)Fe2O3+3CO2Fe+3CO2 还原 (4)Fe+CuSO4===FeSO4+Cu(合理答案均可)