|
Heat and Health Extremely hot weather is common in many parts of the world. Although hot weather just makes most people hot, it can cause medical problems and death. Health experts say that since the year 1900, extremely hot weather has killed more people in the United States than any other natural event. One year—the unusually hot summer of 1980—heat caused about 1,700 deaths in the United States. In 1995, more than 600 people died in a similar heat wave in one city—Chicago. To measure extreme heat, government weather experts have developed the Mean Heat Index. It measures the average of how hot it is felt all day on an extremely hot day. Experts say it is the total heat of a hot day or several hot days that can affect health. Several h A. the weather is much better than usual B. the nights are much longer than usual C. the weather is much hotter than usual D. the days are much longer than usual [单项选择]“汉族”之称始于（）。
A. 秦 B. 东汉 C. 西汉 D. 唐 [判断题]消防舟艇救援人员不得少于2人一组，作业中指挥员要充分评估救援水域状况，合理选择行驶路线，避开危险部位。( )
A.正确 B.错误 [单选题]对重大起重作业方案以及起重工作所采用起重设备的（ ）、标准，应在施工组织设计中明确规定。
A.A.技术规程 B.B.操作方法 C.C.使用说明书 D.D.合格证 [单项选择]痰停于胃可见
A. 喘咳咯痰 B. 神昏痴呆 C. 恶心呕吐、胃脘痞满 D. 肢体麻木、瘰疬痰核 E. 梅核气证 [单项选择]关于白斑的病理变化，不正确的是
A. 上皮细胞过度正角化和过度不全角化 B. 颗粒层增厚 C. 棘层增厚 D. 基底细胞层液化变性 E. 固有层炎症细胞浸润 [单选题]板的受力钢筋间距,当板厚 h≤150mm 时,不应大于( )。
A.120mm B.200mm C.300mm D.150mm [单项选择]What’s your earliest childhood memory Can you remember learning to walk Or talk
The first time you (62) thunder or watched a television program Adults seldom (63) events much earlier than the year or so before entering school, just as children younger than three or four (64) retain any specific, personal experiences. A variety of explanations have been (65) by psychologists for this "Childhood amnesia" (儿童失忆症). One argues that the hippocampus, the region of the brain which is responsible for forming memories, does not mature (66) about the age of two. But the most popular theory (67) that, since adults do not think like children, they cannot (68) childhood memories. Adults think in words, and their life memories are like stories or (69) --one event follows (70) as in a novel or film. But when they search through their mental (71) for early childhood memories to add A. used B. spent C. taken D. chosen [判断题]柴油机一发电机组的功率输出端通过传动轴与静液压变速箱连接。( )
A.正确 B.错误 [简答题]【问题3】 进行一次查询的数据信息见表1-1，网络的基本通信服务费用见表1-2，总费用=网络租用费+通信费。根据表中给出的数据，试计算销售员每月至少应进行多少次查询，才能使得使用移动电话的总费用比使用PDA的总费用更低。 表1-1 一次查询的数据信息
|
