Today is Friday. Betty, Lingling and Tom are talking about what they are going to do at the weekend.

    Sam is a four year old boy. He lives in the USA with his father and mother. His father works in a hospital. He goes there by subway. He can read books on it. His mother is a worker in a factory. She often walks to work. They usually do some shopping on Sundays for the next week. But this Sunday they are going to the park to have a picnic because it is Sam's birthday.

    Look, Sam has many birthday gifts(礼物). One of them is a nice drum. He likes music. Of course Sam likes the drum very much. He makes a noise with it all day. His parents don't mind. They are happy. But one of the neighbours(邻居)doesn't like the noise. One day, she brings a knife and says to Sam, “Sam, do you know, there's a very nice gift in your drum. Here's a knife. Open the drum and let's find it. ”“OK!”Sam answers.

人体内有“生命中枢”之称的结构是（    ）

据统计，剔除通货膨胀因素，1950～1973年联邦德国的国民生产总值增长3.06倍，正好翻两番，年平均增长率为6.3%。其中工业产值增长4.33倍，年平均增长率为7.5%；农业产值增长0.75倍，年平均增长率为2.5%。联邦德国创造这一经济奇迹的因素不包括(  )

材料一：这是一种中国病——其根本原因是“统治阶层的颓废”，在中国古老政治肌体上引起的综合并发症：政治的、经济的、军事的、文化的混沌、失衡、无措、衰朽——我称之为“政治植物人综合症”，病症如“眼”科：视野短浅，目光狭窄；“心”“脑”科：思维陈旧，苟且偷安；“精神”科：没有核心价值观，萎靡不振，畏敌如虎；肢体部分如官僚病：自私自利，腐败无度；文人病：文弱无耻，空谈漫议；军人病：贪污浪费，惜死顾身。其他还有如富贵病——贪图安逸享乐的生活；社会病——全民腐败堕落等：

——引自戴旭《锻造中华民族的精神品格》

材料二：日本关东军密谋“九一八”事变：对此早有觉察的张学良却电令其部下“此时与日本开战，我方必败，败则日本将要求割地赔款，东北万劫不复，宜力避冲突，以公理相周旋。”蒋介石对当时中国人精神状态的评价是：“浑浑噩噩，毫无生气。在行动中表现为好歹不识、是非不辨、公私不分。由此，我们的官员虚假伪善，贪婪腐败；我们的人民斗志涣散，对国家利益漠不关心；我们的青年颓废堕落，不负责任……使我们在天灾和外敌入侵面前束手无策，无能为力。”

——引自戴旭《锻造中华民族的精神品格》