问题
选择题
下列文字表述与反应方程式对应正确的是
A．溴乙烷中滴入AgNO3溶液检验其中的溴元素：Br－+ Ag+ = AgBr↓
B．用醋酸除去水垢：CaCO3 + 2H+ = Ca2+ + H2O + CO2↑
C．实验室用液溴和苯在催化剂作用下制溴苯：
D．硝酸银溶液中滴加过量氨水：Ag+ + NH3·H2O =" AgOH↓+" NH4+
答案
答案：C
题目分析：溴乙烷是非电解质，和硝酸银溶液不反应，A不正确；醋酸是弱酸，应该用化学式表示，B不正确；C正确；D不正确，氨水是过量的，生成的应该是氢氧化二银合氨，答案选C。
点评：该题是高考中的常见题型，属于中等难度的试题。试题紧扣教材，难易适中，基础性强，旨在培养学生灵活运用基础知识解决实际问题的能力的培养，有利于培养学生规范的答题能力。
My mother moved a lot when she was growing up on account of Grandpa being in the army. She hated having to adjust to new schools and make new friends. That’s why I thought she was joking when she put forward the idea of moving. But she was completely serious. “For just the two of us,” my mother said, “an apartment in the city will suit our needs much better.” Personally, I think she’s lost her mind. I guess I can understand why she would want to move, but what about me and what this house means to me?
ooked at my house, you might think it was just another country house. But to me it is anything but standard. I moved into this house with my parents ten years ago. I can still remember that first day like it was yesterday. The first thing I noticed was the big front yard. To me it seemed like an ocean of grass—I couldn’t wait to dive in. The backyard was full of gnarled (扭曲的, 粗糙的) and scary trees that talk on windy nights. But I grew to like them and the shadows they cast in my room. My father and I even built a small tree house, where I often go to remember all the wonderful times we had before Father’s death. 
was growing up because of ________.