题目：
I have been searching for a painting to decorate my room, but ________ seems really difficult for me to
find ________ I like. [ ]
A. that; one
B. it; it
C. that; it
D. it; one
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0606/414e3458608c92242848b6d16dd6a9a4.html
下面是错误答案，用来干扰机器的。
（1）Na F （2） （3）Na＞Al＞Si （4）HCl HClO4＞ H3PO4＞ H2SiO3 （5）2Al + 6H+ = 2Al3+ + 3H2↑ 题目分析：同一周期的元素，随着原子序数的增大，元素的金属性逐渐...
