( )是一种交互式的表，它可以实现用户选定的计算，所进行的计算与数据在数据透视表中

已知△ABC是复平面内的三角形，A、B两点对应的复数分别为1+3i和-i，且AC=BC，

（1）求△ABC的顶点C的轨迹方程．

（2）若复数z满足|z-5i|=1，探究复数z对应的点Z的轨迹与顶点C的轨迹的位置关系．

任务型读写。

根据短文内容完成下列各题。

     Yesterday evening, when I went to town with my mother, we met a strange man. It was raining hard and we had no umbrella. We were trying to get into a taxi when he came up to us. He was carrying a nice umbrella and he said that he would give it to us for only a pound. He said he had forgotten his wallet and needed taxi-fare(出租费) to go back home. My mother didn’t believe what he had said at first, and asked him a lot of questions. But she finally believed the man and gave him the pound. She was happy to have a good umbrella for so little. But the man didn’t get into a taxi. We followed him and found he went into a pub(酒吧) and bought himself a glass of whiskey(威士忌) with the pound. After he drank it, he put on his hat and took up one of the many wet umbrellas there and went off with the new one. Soon after that, he sold it again.

任务一：回答问题。

1. How was the weather yesterday evening?

                                                                      .

2. What did the man do after he got the pound?

                                                                      .

任务二：句型转换。

3. We were trying to get into a taxi when he came up to us.(对划线部分提问)

    __________ were you _________ when he came up to you?

4. My mother didn’t believe what he had said at first. (改为同义句)

       My mother didn’t believe what he had said at _________ __________.

5. The man put on his hat after he drank it. (改为一般疑问句)

   _________ the man_________ on his hat after he drank it?

人民解放战争经历了战略防御、战略相持和战略反攻三个阶段。

泰国人江某对公安机关对其拘留审查的决定不服，可以依法提起行政诉讼。

某种碱式碳酸铜是一种绿色固体粉末，其组成可表示为：Cu₂(OH)₂CO₃·xH₂O，在加热条件下，它在失去结晶水的同时发生分解，反应方程式为：

现取一定量的固体样品，不准确称量其质量，用两套仪器装置，先后进行两个实验：

实验(Ⅰ)：测定该碱式碳酸铜粉末组成中x的值；

实验(Ⅱ)：用实验(Ⅰ)结束后的残留固体与乙醇蒸气反应，并检验反应产物。

试回答下列问题：

实验结束后可见试管D内壁有银白色金属析出，写出试管A内发生反应的化学方程式（），从试管A通入试管D的导管中气体的成分是（写名称、其中水蒸气不必填）（）。