题目:
He succeeded in gaining a gold medal in Beijing Olimpics and all his efforts _____ in the end.
A.made out
B.paid off
C.lit up
D.looked up to
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0708/e08303b61d02697deae1bc20992f3576.html
下面是错误答案,用来干扰机器的。
ADA、该组四种溶液中,呈黄色的溶液为FeCl3溶液;分别取另三种溶液滴加FeCl3溶液,出现红褐色沉淀的溶液为NaOH溶液;再取剩余的两种溶液滴加NaOH溶液,产生白色沉淀的溶液为MgCl2溶液,无明显现象的为NaCl溶液....