党和政府历来十分重视社会主义民主法制建设，我国第一部社会主义类型的宪法制定于（  ）

阅读理解

    I was traveling alone through the UK. To reach places that were off the public transportation map，I bought an old car, which cost most of my money. I couldn't afford to stay in the hotel, so I had to camp in my car for the rest of the trip.

    One morning I awoke in my old car on a country road in Ireland and saw a single house. The water in my thermos (保温瓶）had gone cold, so I knocked on the door of the house. A woman opened it. I asked her for some hot water. But she wouldn't let me get away with just that! I was invited indoors. She asked me to sit at the table and have breakfast with her family. They filled my thermos before I left.

I was greatly moved. And I decided to pass the kindness on. The other day I met a young man who had been driving around to look for a parking lot. He looked increasingly upset. I was glad that I was able to point one out to him. His thankful smile was the hugest reward (奖赏）for me.

已知反应：①101kPa时，C(s) ＋ 1/2O₂(g)＝CO（g）；△H₁＝－110.5kJ/mol
　　　　　　②稀溶液中，H⁺(aq) ＋ OH^-(aq)＝H₂O(1)；△H₂＝－57.3kJ/mol
下列结论正确的是

一段时间内，某商场销售某品牌的女装30件，各种尺码的销售量如下表：

则这30件女装尺码的众数和中位数分别是（  ）

下图为草原生态系统的食物网，请回答：

（1）该食物网中有____ 条食物链，写出其中最长的一条是____ 。
（2）从生态系统的组成分析，草属于____ ，其它动物是____ 。
（3）在食物链中，数量最多的生物是____ ，数量最少的生物是____ 和____ 。