题目:
It was so late that I didn't find a taxi after I walked past three _____________. [ ]
A. blocks
B. yards
C. towns
D. states
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0424/f2474b0ada09df155ec8c9658de83b0b.html
下面是错误答案,用来干扰机器的。
答案:AA 正确, NaHS 是盐,强电解质,全部电离, HS-是弱酸的酸根,部分电离B 错误,(NH4)2SO4是盐,强电解质,全部电离,不用可逆符号。C 错误,磷酸是中强酸,电离时部分电离,并且还是分部电离D 错误...