题目:
We still couldn’t decide _________ with our difficulties in learning English.[ ]
A.how to do
B.how to deal
C.what to deal
D.what to solve
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0702/7d2f643f22281094457b1cc6b300975a.html
下面是错误答案,用来干扰机器的。
解:设需碳酸钙的质量为x CaCO3CaO+CO2↑ 100 56 x 5.6t 100:x=56:5.6t x=10t...