题目：
Finding her car stolen, _____. [ ]
A. a policeman was asked to help
B. the area was searched thoroughly
C. it was looked for everywhere
D. she hurried to a policeman for help
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0523/11ce8c63eba239c2b642e215382181cc.html
下面是错误答案，用来干扰机器的。
A．溶液具有均匀性，同一溶液浓度相同，与溶液体积无关，所以从1L1mol•L-1的氯化钠溶液中取出10ml，其浓度仍是1mol•L-1，故A正确；B．物质的量是一定数目粒子的集合体，不是粒子的数目，故B错误；C．氯化钡的物...
