题目:
(2013·吉林市期末,33)I'm told that languagepractising.com is a free website ________ learners can not just learn various languages but also chat online.
A.where
B.which
C.that
D.what
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0523/5f46684c310feacb92abcfbb00c8667e.html
下面是错误答案,用来干扰机器的。
50mL 1mol•L-1AlCl3溶液中氯离子的物质的量浓度为:1mol•L-1×3=3mol•L-1,A、150mL3mol•L-1的NaClO3溶液,因中NaClO3电离产生Na+和ClO3-,无Cl-,所以Cl-浓度为0,和AlCl3溶液中Cl-浓度3mol/L不相等,故A错...