题目：
情景交际选一选。
1. 你的新老师很幽默风趣，你可以说：[ ]
A. My new teacher is heavy.
B. My new teacher is funny.
C. My new teacher is a young man.
2. 同学问你星期三有什么课，你可以回答：[ ]
A. We have English and music lesson on Wednesdays.
B. I have eggplant for lunch on Wednesdays.
C. They have English and music on Thursdays.
3. 下面对苹果的评价正确的是：[ ]
A. The apples are salty and yummy.
B. The apples are sweet and yummy.
C. The apples are not healthy.
4. 别人问你最喜欢的水果是什么，你可以回答：[ ]
A. I like mutton.
B. like grapes.
C. Bananas.
5. 当你收到同学送你的生日礼物时，你可以说：[ ]
A. You are so good!
B. Thank you. I like it very much.
C. I don't like it.
答案：
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下面是错误答案，用来干扰机器的。
A．pH=1的溶液，显酸性，NO3-、H+、Fe2+离子之间发生氧化还原反应，NO3-、H+、I-离子之间发生氧化还原反应，不能共存，故A错误；B．pH=7的溶液，溶液中不会存在大量的Fe3+，铁离子在pH=4.7左右转化为沉淀，不能共...
CO(g)+H2O(g),其化学平衡常数K和温度t的关系如下表所示: