老年人易发生体位性低血压的主要原因是() A.心肌细胞增大,室壁增厚,收缩力增强 B

题型:单项选择题

问题:

老年人易发生体位性低血压的主要原因是()

A.心肌细胞增大,室壁增厚,收缩力增强

B.心肌顺应性增加,代偿能力减弱

C.心肌对肾上腺素反应下降,心率加快

D.心肌传导性减弱,血压下降

E.调节血压和血容量的功能下降

考点:广西住院医师规范化培训(全科)基础知识老年保健老年保健题库
题型:单项选择题

饲料原料、浓缩饲料、配合饲料和精料补充料生产许可证由省级饲料管理部门核发。

题型:单项选择题

沉甸甸的小鱼篓(lǒu)

       我常在故乡的小河里撒网捕鱼。一片旋转的网,就像短短的裙,飘落在河面,溅(jiàn) 起无数颗水珠,撩(liáo)起我无限的喜悦。     

       屏着喘息,拉紧网绳,我将网收起,在沙滩上抖开,抖出一条条银白色的小鱼儿,抖出了小河的生命。多么可爱的小生命,我却把它们引到了一个干涸(hé)的世界。    

       我想来想去,决定把小鱼放了,让它们重新回到河里。河水清清,小鱼儿悠(yōu)悠地游向深处,那漂亮的尾巴一甩又一甩……    

       妈妈知道了,点点我的脑门儿:“这是傻孩子捕鱼。”

       爸爸却摸着我的头,乐呵(hē)呵地说:“让小鱼儿又回到河妈妈怀里,一点儿也不傻。” 我的小竹篓虽然是空的,却沉甸甸的,盛满了欢乐和爱意。 

1.阅读理解。     

(1)文中的________、________、________、_______都是写“我”捕鱼动作的词。文中描写妈妈动作的词语是____________,描写爸爸动作的词语是____________。    

(2)“多么可爱的小生命,我却把它们引到了一个干涸的世界。”     

      a.句中“可爱的小生命”指____________ 。    

      b.句中“干涸的世界”指_______________ 。 

2.阅读迁移。     

(1)用下列文中词语填空,组成通顺的句子。    

     清清    乐呵呵    飘落    悠悠     

     火红的枫叶,_________地__________在__________的河水里,一只小虫飞上去,___________地唱起:“……小船儿轻轻飘荡在水中,迎面吹来了凉爽的风……”     

(2)根据短文内容,用文中词语填空。     

    因为小竹篓里盛满了________________,所以它显得__________________。     

(3)根据人物性格,补写人物话语。    

    如果竹篓里装进一条条银白的小鱼,妈妈可能说_____________________________________________________________________,爸爸可能说________________________________________________________________________________________________________________________________________________。

3.阅读延伸。(任选一题回答)    

 (1)小鱼儿回到妈妈那里,它们可能对妈妈说些什么?    

     _________________________________________________________________________________

     _________________________________________________________________________________

 (2)文中说:“我想来想去……”你认为小作者想了些什么呢?

     __________________________________________________________________________________

     __________________________________________________________________________________

题型:单项选择题

主轴密封的润滑水供应,一般有()个水源。

A.1

B.2

C.3

D.4

题型:单项选择题

近年来,我国对外承包工程业务完成营业额不断攀升。同时,我国多地变“招商引资”为“招商选资”,也引进了一批科技含量高、产业关联度强的企业,推动了当地经济发展。材料表明,我国()

①利用外资更加注重优化结构和提高质量

②利用跨国公司努力来实现自己利益的最大化

③积极实施“引进来”和“走出去”相结合的战略

④坚持独立自主、自力更生原则,回避全球化风险

A.①②

B.③④

C.①③

D.②④

题型:单项选择题


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What other fitness facilities can residents enjoy besides swimming pools, exercise rooms and saunas They can also enjoy ______ .

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