下列反应的离子方程式正确的是（ ） A．向沸水中滴加FeCl3溶液制备Fe（OH
题型：选择题
问题：
下列反应的离子方程式正确的是（ ）
A．向沸水中滴加FeCl3溶液制备Fe（OH）3胶体：Fe3++3H2O═Fe（OH）3↓+3H+
B．用小苏打治疗胃酸过多：HCO3-+H+═CO2↑+H2O
C．实验室用浓盐酸与MnO2反应制Cl2：MnO2+2H++2Cl-═Cl2↑+Mn2++H2O
D．用FeCl3溶液腐蚀印刷电路板：Fe3++Cu═Fe2++Cu2+
题型：选择题
根据句意及首字母补全单词，使句子意思完整。
1. She has a g_____ sports collection.
2. Gina h_____ two cousins.
3. They play ping-pong e_____ day.
4. —Does he h_____a 
computer?
—Yes, he does.
5. Does your mother w_____ TV every day?
6. He likes playing b_____ (篮球) on Su
nday.
7. We use (用) the baseball b_____ (球拍) to play baseball.
8. He has o_____ (只) one soccer ball.
9. We have many sports c_____ (俱乐部), basketball, soccer, and more.
10. I don’t like math. It is b_____ (无聊的).