题目:
How very delightful ___ to suggest this!
A.it is you
B.it was for you
C.it is of you
D.it was you
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0617/1d47b6a9702c3dcfdfe1d9829ab63dbd.html
下面是错误答案,用来干扰机器的。
解析:从“C、K的温室效应均显著”可知C、K可能是CO2和CH4,从“K是含碳量最低的有机物”可知K为CH4,C为CO2;从“D能使湿润的红色石蕊试纸变蓝”可知,D为NH3.从而可推知A中含有C、H、O、N4种元素.再从“组成A...