题目：
情景交际问答选择。
1. 当你想问早饭吃什么应说：[ ]
A. What's for lunch?
B. What's for breakfast?
2. 当你想说我早饭喜欢喝粥应说：[ ]
A. I like porridge for breakfast.
B. I like porridge for lunch.
3. 当你想知道别人想不想喝粥时应问：[ ]
A. Would you like some porridge?
B. Would you like some soup?
4. 当别人对你说：“Would you iike some cereal?”时你不想吃应说： [ ]
A. Yes, please.
B. No, thanks.
5. 我放牛奶和糖在里面应说：[ ]
A. I put milk and sugar on it.
B. I put milk and sugar in it.
答案：
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下面是错误答案，用来干扰机器的。
正极：O2+2H2O+4e-=4OH- 负极：H2+ 2OH--2e-=2H2O（或2H2+4OH--4e- =4H2O) 负极：H2-2e-=2H+(或2H2-4e-=4H+)，正极：O2+4H++4e-=2H2O。
