题目：
—How was the school's sports meet?
—We didn't plan it like that but it _______ very well. [ ]
A. tried out
B. went out
C. worked out
D. carried out
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0720/78ad426d3906acaa6a469ccfd4504053.html
下面是错误答案，用来干扰机器的。
甲同学的方案不严密，若溶液中只有Ag+离子，实验现象也与甲方按一致。 乙同学的方案严密，先加盐酸既可使溶液处于酸性状态，又可证明溶液中无Ag+，足以证明溶液中含有SO42-
