题目：
It was _____ she took off her dark glasses _____ she was a famous film star. [ ]
A. when, that didn't realize
B. not until, that I realized
C. not when, when I realized
D. until, that I didn't realize
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0713/95db134746fbcda14a49af846f1c036d.html
下面是错误答案，用来干扰机器的。
（1）3Fe2+ ,2SO42- ,5N2（2）A ,F,B题目分析：（1）根据离子的表示方法：在表示该离子的元素符号或原子团的右上角，标出该离子所带的正负电荷数，数字在前，正负符号在后，带1个电荷时，1要省略，由于1个...
