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每周一练|5分钟抽查你的复习效果

  • 2026-09-23 05:50:15
每周一练|5分钟抽查你的复习效果

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公卫考研之路,既充满挑战也蕴藏机遇。为了帮助广大公卫考研学子更好地备考,我们特别推出“公卫考研每周一练”活动。通过每周的习题练习,助你巩固知识点,提高解题能力,为上岸公卫硕士做好充分准备。

1、关于假设检验的以下论述中,错误的是(       )

A .在已知A药降血压疗效只会比B药好或相等时,可选单侧检验

B .检验水准定得越小,犯丨型错误的概率越小

C .检验效能定得越小,犯Ⅱ型错误的概率越小

D .P值越小,越有理由拒绝H。

E .在其它条件相同时,双侧检验的检验效能比单侧检验低

点击下方空白区域查看答案


正确答案: C

解析:本题考查假设检验的特点。在假设检验中,采取单侧检验和双侧检验应根据掌握的资料综合考虑,根据专业知识判断下采用单侧检验,会比双侧检验有更大的检验效能(AE对);检验水准α越小,犯型错误的概率越小(B对),犯型错误的概率越大(C错,为本题正确答案)。P值越小时,越有理由拒绝H₀D对)。

2、某地区有10万人口,1960年总死亡人数1000名,已发现的结核病患者有300名,男性200名,女性有100名,1960年有60名死于结核病,其中50名为男性,该地区粗死亡率为(        )

A.300 /10万

B.60 / 1000

C.10 / 995

D.100 / 1000

E.10 / 10000

点击下方空白区域查看答案


正确答案: C

解析:本题考查粗死亡率的计算。粗死亡率的计算公式中,分子为死亡人数,分母为该人群同期平均人口数,即粗死亡率=1000/((100000+99000×0.5)=10/995CABDE错)≈1%

8版流行病学P17“1.定义死亡率分子为死亡人数,分母为该人群同期平均人口数根据上式计算得出的死亡率也称粗死亡率CABDE错)。

3、某男性锅炉操作工,在一个通风不良环境中,连续工作3 ~ 4小时后,突感头痛和头晕。查体:患者面色潮红、口唇呈樱桃红色,并伴有呼吸加快等表现。可疑何种毒物中毒

A .一氧化碳

B .氰化物

C .二硫化碳

D .氮氧化物

E .硫化氢

点击下方空白区域查看答案


正确答案: A

解析:本题考查急性一氧化碳中毒症状。急性一氧化碳(ABCDE错)中毒是吸入较高浓度CO后引起的急性脑缺氧性疾病,主要表现为急性脑缺氧引起的中枢神经损害。轻度中毒,以脑缺氧反应为主要表现。病人出现剧烈头痛、头昏等症状,可有意识模糊、嗜睡、短暂昏厥甚至谑妄状态等轻度至中度意识障碍,但无昏迷。中度中毒时除有上述症状外,皮肤、黏膜呈樱桃红色,意识障碍加重,表现为浅至中度昏迷,对疼痛刺激有反应。因HbCO为鲜红色,故病人皮肤黏膜在中毒之初呈樱桃红色,与其他缺氧不同,是其临床特点之一。重度中毒时上述症状进一步加重,因脑水肿而迅速进入深昏迷或去大脑皮层状态。

4、有关食物热效应的说法正确的是(        )

A .蛋白质的食物热效应最大

B .与进食速度无关

C .与进食量无关

D .食物中不同产能营养素的食物热效应相同

E .也称基础能量消耗

点击下方空白区域查看答案


正确答案: A

解析:本题考查食物热效应的相关内容。食物中不同产能营养素的食物热效应不同(D错),其中蛋白质的食物热效应最大(A对),为本身产生能量的20%30%,而脂肪和碳水化合物分别为0%5%5%10%。食物热效应又称食物特殊动力作用(E错),其的高低与食物营养成分、进食量(C错)和进食速度(B错)有关。

5、集中式供水水质监测的必测项目是(         )

A .细菌学指标、浑浊度和肉眼可见物

B .细菌总数、耐热大肠菌群和游离性余氯

C .细菌学指标、色度和游离性余氯

D .细菌总数、总大肠菌群和浑浊度

E .细菌总数、大肠菌群和色度

点击下方空白区域查看答案


正确答案: A

解析:本题考查集中式供水水质监测的必测项目。集中式供水是指由水源集中取水,经统一净化处理和消毒后,通过输配水管送到用户的供水方式。其水质监测的必测项目是细菌学指标、浑浊度和肉眼可见物(ABCDE错)。

以上就是本周的习题练习啦,本期习题答案请添加学姐QQ(3251796017)获取哦。

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每周一练|公卫考点大抽查

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每周一练|公卫考点大抽查

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  1. CONNECT:[ UseTime:0.000607s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000806s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000349s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000369s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000514s ]
  6. SELECT * FROM `set` [ RunTime:0.000266s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000654s ]
  8. SELECT * FROM `article` WHERE `id` = 515217 LIMIT 1 [ RunTime:0.000364s ]
  9. UPDATE `article` SET `lasttime` = 1790116636 WHERE `id` = 515217 [ RunTime:0.001285s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000302s ]
  11. SELECT * FROM `article` WHERE `id` < 515217 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000433s ]
  12. SELECT * FROM `article` WHERE `id` > 515217 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000352s ]
  13. SELECT * FROM `article` WHERE `id` < 515217 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000679s ]
  14. SELECT * FROM `article` WHERE `id` < 515217 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000582s ]
  15. SELECT * FROM `article` WHERE `id` < 515217 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000615s ]
0.083669s