{{B}}Questions 11-15{{/B}} Recent research has claimed that an excess of positive ions in the air can have an ill effect on people’s physical or psychological health. What are positive ions Well, the air is full of ions, electrically charged particles, and generally there is a rough balance between the positive and the negative charged. But sometimes this balance becomes disturbed and a larger proportion of positive ions are found. This happens naturally before thunderstorm, earthquakes when winds such as the Mistral, Hamsin or Sharav are blowing in certain countries. Or it can be caused by a build-up of static electricity indoors from carpets or clothing made of man-made fibres, or from TV sets, duplicators or computer display screens. When a large number of positive ions are present in the air many people experience unpleasant effects such a A. near a pound with a water pump B. close to a stow-flowing river C. high in some barren mountains D. by a rotating water sprinkler [单项选择]第三代头孢菌素的特点,叙述错误的是:()
A. 体内分布较广,一般从肾脏排泄 B. 对各种β—内酰胺酶高度稳定 C. 对Gˉ菌作用不如第一、二代 D. 对绿脓杆菌作用很强 [单项选择]男,70岁,左侧偏瘫2周,右侧上、下肢肌张力增高,只能在肩、肘关节屈曲做肩关节部分外展,坐位和立位时髋、膝、踝可协同性屈曲。右上肢的Brunnstrom分期是()
A. Ⅰ期 B. Ⅱ期 C. Ⅲ期 D. Ⅳ期 E. Ⅴ期 [填空题]护患双方的道德______,是护理伦理学的核心内容。
[单项选择]将1.255001修约为三位有效数字的正确写法是()。
A. 1.255 B. 1.26 C. 1.25 [单项选择]国发[2003]5号文件规定,取消建筑施工企业______资质核准,由注册建造师代替,并设立过渡期。
A. 项目主管 B. 项目经理 C. 项目承包人 D. 项目总工程师 [单选题]关于溶血性输血反应,以下错误的是
A.立即停止输血,将供者和受者血标本送血库作进一步检查 B.ABO血型不合时,溶血发生迅速;Rh血型不合时,溶血多在1~2小时发生 C.血液保存不当也可发生溶血性输血反应 D.尽早碱化尿液防止肾衰竭 E.冷凝集血可以不发生溶血性输血反应 [简答题]“四个革命、一个合作”能源安全新战略内容有哪些?
[单选题]群众路线的核心内容是()。
A.从群众中来 B.一切为了群众,一切依靠群众 C.到群众中去 D.领导与群众相结合 [不定项选择题]A.血苯丙氨酸浓度>0.24mmol/L(4mg/dl)
A.染色体核型为:46,XX(或XY)/47,+21 B.染色体核型为:48,XXXY C.染色体核型为:45,XO/46,XX D.血清铜蓝蛋白值:50mg/L E.肝豆状核变性( ) [判断题]井口闸门开关不灵活时,可用大锤轻轻震击。
[填空题]电炉出钢后补炉原则是()、快补、薄补,炉门口两侧和渣线损坏严重处加强补。
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