人体形成尿液的器官是（  ）

阅读下面的材料，按要求完成后面的题目。

上世纪八九十年代、高考标语多是“梅花香自苦寒来”之类的，传统而含蓄。2000年前后的标语多是“努力拼搏”“高考必胜”“永不言败”等。如今的高考标语又有了新的内容：“吾日三省吾身，高否？富否？帅否？否，滚去学习”“没有高考，你拼得过富二代吗？”

对上述现象你有何看法？请简述。要求：观点鲜明，表达清晰连贯，言之成理。

B

    I'm at Billy's birthday party. There are a lot of friends in his house. Some stand beside the table and enjoy the snacks and drinks. There is some food on the table. I like the chocolate and the fruit very much. Billy sits in the sofa and chats with some friends there. He wears a red T-shirt and a pair of blue jeans. He looks so cool today. Wow! The cake is really big. There are some candles on it. Billy's friends begin to sing 'Happy Birthday' to Billy. Billy is very excited. He blows out the candles (吹蜡烛) and cuts the cake. Everyone has fun at the party.