My name is Lisa. I'm from America, but now my dad, my mum and I are in Shanghai. My dad and my mom are English teachers. But sometimes My father goes to learn Chinese. So he is a student, too. We are in No.12 Middle School.

    Mary, Liu Ying, Wang Haobin are my friends. Mary is from England and she is thirteen years old. Liu Ying is from the capital of China. She and I are fourteen years old. Her English name is Rose. Wang Haobin is from Wenzhou. But he likes Shanghai.

如图是在显微镜下观察到的血涂片，分析正确的是（　　）

读“六大板块示意”,完成下列要求:

北京市东城区鼓楼苑社区属于文物保护地区，不少住户大院里杂物到处乱放，极易引发火灾。为此，社区采取公开讨论的办法，提出“你周围的消防隐患有哪些”等问题，让居民思考回答，大家感受到消防安全的重要，都主动清理了自家院子。下列选项对这一做法及其意义的概括正确的是（　　）