相关试题
【单选题】
下列哪项为不含有消化酶的消化液___
A. 唾液
B. 胃液
C. 胆汁
D. 胰液
E. 小肠液
【单选题】
下列关于胰液的叙说，错误的是：___
A. 胰液的pH约为8
B. 胰液的碳酸氢钠含量高
C. 胰液的分泌以神经调节为主
D. 胰液中含有羟基肽酶
E. 每天分泌量超过1000ml
【单选题】
促胰液素引起胰腺分泌胰液的特点是：___
A. 水和HCO3-多，酶少
B. 水和HCO3-少，酶多
C. 水多，酶和HCO3-少
D. HCO3-多，水和酶少
E. 水和HCO3-少，酶少
【单选题】
引起促胰液素释放最强的物质是：___
A. 蛋白质分解产物
B. 盐酸
C. 淀粉
D. 葡萄糖
E. 脂酸钠
【单选题】
促使胰液中各种酶分泌的重要体液因素是___
A. 胃泌素
B. 促胰液素
C. 胆囊收缩素
D. 胆盐
E. HCl
【单选题】
刺激促胰液素释放的最有效物质是___
A. 蛋白质分解产物
B. 葡萄糖
C. HCl
D. 胆酸钠
E. 淀粉
【单选题】
激活胰液中胰蛋白酶原的是___
A. 脂肪酸
B. 胆盐
C. 蛋白水解产物
D. 肠致活酶
E. 糜蛋白酶
【单选题】
胆汁中与脂肪消化和吸收有关的主要成分是：___
A. 胆色素
B. 胆固醇
C. 卵磷脂
D. 胆盐
E. 碳酸氢盐
【单选题】
关于胆盐的肠肝循环，错误的是：___
A. 胆盐在回肠末端被吸收
B. 经门静脉返回到肝脏
C. 每次重吸收约95%
D. 每次进餐后可循环5~6次
E. 返回的胆盐对肝胆汁的分泌有促进作用
【单选题】
下列哪项因素不参与胆汁排出的调节 ___
A. 胃泌素
B. 胆囊收缩素
C. 促胰液素
D. 胆盐
E. 迷走神经
【单选题】
与脂肪的消化、吸收有关的消化液是___
A. 唾液
B. 胃液
C. 胆盐
D. 胰液
E. 小肠液
【单选题】
胆汁中参与消化的物质是___
A. 唾液
B. 胃液
C. 胆盐
D. 胰液
E. 小肠液
【单选题】
不含有消化酶的消化液是___
A. 唾液
B. 胃液
C. 胆汁
D. 胰液
E. 小肠液
【单选题】
下列哪种不是胆汁的作用___
A. 作为乳化剂，降低脂肪的表面张力
B. 分解脂肪为脂肪酸和甘油一酯
C. 作为脂肪分解产物的动载工具
D. 可中和一部分胃酸
E. 可促进脂溶性维生素的吸收
【单选题】
下列维生素中，哪种是由大肠内细菌利用食物残渣合成的：___
A. 维生素K
B. 维生素C
C. 维生素E
D. 维生素A
E. 维生素D
【单选题】
关于消化和吸收的叙述，错误的是___
A. 食物被加工、分解的过程，属于消化
B. 大分子物质可被吸收入血
C. 小分子物质被转运入血或淋巴液的过程，属于吸收
D. 消化分为机械性和化学
E. 消化在先，吸收在后
【单选题】
营养物质的消化、吸收主要发生在___
A. 大肠
B. 小肠
C. 口腔
D. 胃
E. 食管
【单选题】
吸收的主要部位在小肠，下列哪项不是其原因___
A. 食物在小肠内停留时间长
B. 小肠长度长，肠壁厚，吸收面积大
C. 小肠粘膜中有丰富的毛细血管和毛细淋巴管
D. 食物在小肠内已被分解为易吸收的小分子物质
E. 小肠有丰富的消化酶
【单选题】
关于铁的吸收，错误的是___
A. 高价铁不易吸收，亚铁易吸收
B. 机体缺铁时，吸收铁的能力增强
C. 维生素D可促进铁吸收
D. 胃酸可促进铁吸收
E. 铁吸收的部位主要在十二指肠和空肠
【单选题】
关于糖的吸收，错误的是___
A. 以单糖的形式吸收
B. 是继发性主动转运
C. 需要Na+参与
D. 吸收途径为血液和淋巴液
E. 已糖吸收比戊糖快
【单选题】
人体最主要的排泄器官是___
A. 肠道
B. 泪腺
C. 肺
D. 肾
E. 皮肤
【单选题】
肾的功能最重要的是___
A. 排出代谢终产物
B. 排出多余或无用物质
C. 分泌肾素
D. 维持内环境相对稳定
E. 分泌促红细胞生成素
【单选题】
肾脏的基本功能单位是 ___
A. 肾小球
B. 肾小体
C. 肾小管
D. 集合管
E. 肾单位
【单选题】
可分泌肾素的结构是肾脏的 ___
A. 致密斑
B. 系膜细胞
C. 间质细胞
D. 颗粒细胞
E. 感受器细胞
【单选题】
肾脏致密斑的分泌是直接感受 ___
A. 肾血管血压变化
B. 肾血流 NaCl 含量变化
C. 肾小管内压变化
D. 肾小管液 NaCl 含量变化
E. 入球小动脉牵张刺激
【单选题】
有关肾素的叙述，正确的是___
A. 它是由近端小管细胞分泌的
B. 肾素分泌可导致血钠和水丢失
C. 肾素分泌是由平均肾动脉压升高引起的
D. 它使血管紧张素原转变为血管紧张素Ⅰ
E. 它使血管紧张素Ⅰ转变为血管紧张素Ⅱ
【单选题】
肾脏血液供应的特点是 ___
A. 血流量小
B. 血流分布均匀
C. 肾小管 周围毛细血管内血压高
D. 肾小球毛细血管内血压高
E. 肾血流量易随全身血压波动而变化
【单选题】
肾血流量与全身血液循环相配合主要靠下列哪项来调节___
A. 自身调节
B. 神经体液调节
C. 负反馈调节
D. 正反馈调节
E. 前馈调节
【单选题】
当动脉血压___，肾血流量可保持不变。
A. 80～180mmHg
B. 60～180mmHg
C. 80～120mmHg
D. 100～120mmHg
E. 60～90mmHg
【单选题】
当动脉血压﹤80mmHg时，可出现___
A. 无尿
B. 少尿
C. 多尿
D. 尿量不变
E. 血尿
【单选题】
当动脉血压﹤40mmHg时，可出现___
A. 无尿
B. 少尿
C. 多尿
D. 尿量不变
E. 血尿
【单选题】
尿生成的基本过程不包括___
A. 肾小球滤过
B. 肾小管和集合管的重吸收
C. 近球小管的重吸收
D. 肾小管和结合管的分泌与排泄
E. 以上都对
【单选题】
肾小球滤过的结构基础是___
A. 有效滤过压
B. 滤过膜
C. 肾血流量
D. 动脉血压
E. 滤过率
【单选题】
滤过膜结构不包括___
A. 毛细血管内皮细胞层
B. 基底膜层
C. 肾小囊脏层
D. 肾小囊壁层
E. 滤过裂隙膜
【单选题】
最易通过肾小球滤过膜的物质是 ___
A. 带负电的小分子
B. 带正电的小分子
C. 电中性的小分子
D. 带正电的大分子
E. 带负电的大分子
【单选题】
血液流经肾小球时,促进血浆滤出的直接动力是___
A. 全身动脉血压
B. 肾动脉血压
C. 入球小动脉血压
D. 肾小球毛细血管血压
E. 出球小动脉血压
【单选题】
肾小球滤过的动力是___
A. 肾小球毛细血管血压
B. 肾小球有效滤过压
C. 血浆胶体渗透压
D. 囊内压
E. 血浆晶体渗透压
【单选题】
肾小球有效滤过压等于___
A. 肾小球毛细血管血压—（血浆胶体渗透压+囊内压）
B. 肾小球毛细血管血压—血浆胶体渗透压—囊内压
C. 肾小球毛细血管血压 + 血浆胶体渗透压 + 囊内压
D. 血浆胶体渗透压—（肾小球毛细血管血压+囊内压）
E. 囊内压—（血浆胶体渗透压+肾小球毛细血管血压）
【单选题】
肾小球滤过率是指每分钟___
A. 一个肾单位生成的原尿量
B. 一个肾脏生成的原尿量
C. 两肾生成的原尿量
D. 两肾生成的终尿量
E. 一个肾脏生成的终尿量
【单选题】
滤过分数指下列哪一项的比值 ___
A. 肾小球滤过率/肾血浆流量
B. 肾血浆流量/肾血流量
C. 肾血流量/肾血浆流量
D. 肾小球滤过率/肾血流量
E. 肾血流量/心输出量
推荐试题
【单选题】
What does Dr. White try to find out about living in a greener urban area? ___
A. How it affects different people.
B. How strong its positive effect is.
C. How long its positive effect lasts.
D. How it benefits people physically.
【单选题】
What did Dr. White’s research reveal about people living in a green environment? ___
A. Their stress was more apparent than real.
B. Their decisions required less deliberation.
C. Their memories were greatly strengthened.
D. Their communication with others improved.
【单选题】
According to Dr. White, what should the government do to build more green spaces in cities? ___
A. Find financial support.
B. Improve urban planning.
C. Involve local residents in the effort.
D. Raise public awareness of the issue.
【单选题】
The survey by the Kaiser Family Foundation is mentioned to illustrate the idea that . ___
A. kids don’t always follow parents’ rules
B. only few parents believe the good news
C. much media use results in bad health
D. parents’ rules make a huge difference
【单选题】
What did the kids do when parents set any time or content limits, according to the Kaiser Family Foundation? ___
A. They cut down on their screen time.
B. They appreciated their parents’ love.
C. They spent more time staying outdoor.
D. They accepted parents’ rules unwillingly.
【单选题】
What will Kenneth Ginsburg most probably suggest that parents should do? ___
A. Avoid setting firm rules.
B. Avoid ruling with an iron grip.
C. Set rules after family discussion.
D. Set rules that are easy to understand.
【单选题】
Margaret Broe -Fitzpatrick finds it impossible. ___
A. to achieve just- right parenting
B. to keep track of everything done by the kids
C. for the kids to face rules alone
D. for the kids to observe rules without protest
【单选题】
The passage is mainly intended for parents . ___
A. whose kids have difficulty in self- discipline
B. whose kids are addicted to media use
C. who have doubts about setting rules
D. who are too busy to care for their kids
【单选题】
The word “it” (Para. 2) most probably refers to. ___
A. the lack of stable communities
B. the breakdown of informal information channels
C. the increased mobility of families
D. the growing number of people moving from place to place
【单选题】
The main problem people may encounter today arises from the fact that . ___
A. they have to learn new things consciously
B. they lack the confidence of securing reliable and trustworthy information
C. they have difficulty obtaining the needed information readily
D. they can hardly carry out casual communications with an extended family
【单选题】
From the passage we can infer that _______. ___
A. electronic mail will soon play a dominant role in transmitting messages
B. it will become more difficult for people to keep secrets in an information era
C. people will spend less time holding meetings or conferences
D. events will be reported on the spot mainly through satellites
【单选题】
Technology facilitates _______. ___
A. sharing information
B. storing and sending information
C. providing people with easy access to more information
D. all of the above
【单选题】
We can learn from the last paragraph that _______. ___
A. it is necessary to obtain as much
B. people should make the best use of the information
C. we should realize the importance of accumulating information
D. it is of vital importance to acquire needed information efficiently
【单选题】
The author thinks that people are _________. ___
A. satisfied with their appearance
B. concerned about appearance in old age
C. far from neglecting what is in fashion
D. reluctant to follow the trends in fashion
【单选题】
Fashion magazines and TV advertisements seem to link fashion to _________. ___
A. confidence in life
B. personal dress
C. individual hair style
D. personal future
【单选题】
Causes of fashions are _________. ___
A. uniform
B. varied
C. unknown
D. inexplicable
【单选题】
Present-day society is much freer and easier because it emphasizes _________. ___
A. uniformity
B. formality
C. informality
D. individuality
【单选题】
Which is the main idea of the last paragraph? ______________ ___
A. Care about appearance in formal situations.
B. Fashion in formal and informal situations.
C. Ignoring appearance in informal situations.
D. Ignoring appearance in all situations.
【单选题】
Permissive parents would ________. ___
A. let their children read any books they like to
B. not let their children see any films they like to
C. not let their children read any books without first checking their contents
D. let their children see the films with their first checking
【单选题】
The fact that parents check the contents of the book or the film for their children to read or see shows __________. ___
A. the necessity of censorship
B. that many books and films are bad
C. that children need their parents to help them understand more
D. that the parents are permissive
【单选题】
Which of the following statements is NOT true?____________ ___
A. Some adults can’t tell right from wrong.
B. Censorship is compared to the law because both of them perform good service to society as a whole.
C. Censors pay attention only to genuine works of art.
D. Censorship is necessary because many books, plays and films are far from being “works of art”.
【单选题】
What does the word “corrupt” in Para.4 mean?__________ ___
A. Make morally bad.
B. Hurt.
C. Injure.
D. Damage.
【单选题】
What would be the best title of this passage?_____________ ___
A. Permissive Parents and Responsible Parents.
B. Censorship and the Law.
C. Censors Value Artistic Merits .
D. Censorship Performs Good Service to Society.
【单选题】
Lie detectors are widely used in the United States because _____________. ___
A. they can help detect people’s emotional stress
B. they can help detect people's physiological changes
C. they can help find out whether a person is telling the truth or not
D. they can measure the subject’s electrical resistance
【单选题】
According to the passage, we know that Britain______________. ___
A. will adopt lie detectors widely
B. will adopt lie detectors on a smaller scale
C. adopt lie detectors
D. has not decided whether to adopt lie detectors or not
【单选题】
The tests themselves are by no means free from error..." (Line 1-2.Para.3) means ____________. ___
A. the tests definitely have no error
B. the tests sometimes make mistakes
C. the polygraphers do not make mistakes
D. the polygraphers can avoid error by using some techniques
【单选题】
Which of the following is true? ________________ ___
A. The tests are conducted by qualified polygraphers.
B. Innocent people may blush or stammer when questioned.
C. Guilty people can definitely be found out by answer questions
D. Guilty people may escape by refusing to answer questions.
【单选题】
What troubles lie detector researchers most is that _______________. ___
A. innocent people are convicted crimes
B. innocent people will learn to tell lies
C. lie detectors may cause industrial unrests
D. lie detectors are sometimes not dependable
【单选题】
In the passage the author's attitude towards "mixed-ability teaching" is _______. ___
A. critical
B. questioning
C. approving
D. objective
【单选题】
By "held back" (Line 1) the author means _____. ___
A. made to remain in the same classes
B. forced to study in the lower classes
C. drawn to their studies
D. prevented from advancing
【单选题】
The author argues that a teacher's chief concern should be the development of the student's _________. ___
A. personal qualities and social skills
B. total personality
C. learning ability and communicative skills
D. intellectual ability
【单选题】
Which of the following is NOT MENTIONED in the third paragraph? __________ ___
A. Group work gives pupils the opportunity to learn to work together with others.
B. Pupils also learn to develop their reasoning abilities.
C. Group work provides pupils with the opportunity to learn to be capable organizers.
D. Pupils also learn how to participate in teaching activities.
【单选题】
The author's purpose in writing this passage is to ______. ___
A. argue for teaching bright and not-so-bright pupils in the same class
B. recommend pair work and group work for classroom activities
C. offer advice on the proper use of the library
D. emphasize the importance of appropriate formal classroom teaching
【单选题】
According to the author, the deaths among youth are mainly caused by _____. ___
A. traffic accidents
B. smoking-related diseases
C. murder
D. all of these
【单选题】
Every day there are over_____high school students who will become regular smoker. ___
A. 75
B. 23
C. 30
D. 3000
【单选题】
By "dropout" the author means______. ___
A. students who failed the examination
B. students who left school
C. students who lost their way
D. students who were driven out of school
【单选题】
The reason for declining adolescent smoking is that ________. ___
A. NCI has taken effective measures
B. smoking is prevented among high school seniors
C. there are many smokers who have died of cancer
D. not stated
【单选题】
What is implied but not stated by the author is that ________. ___
A. smoking rates among youth have declined very little
B. there are now more female than male smokers among high school seniors
C. high smoking rates are due to the increase in wealth
D. smokers at high school are from low socio-economic backgrounds
【单选题】
According to the passage, which of the following is NOT a disadvantage of part time education? _______________ ___
A. It requires some break in one's career.
B. It tends to last too long for many people to complete a degree program.
C. It affects one's career.
D. It gives the student less time to share with the family.
【单选题】
Which of the following is NOT an advantage of distance learning? _________ ___
A. The student may choose his or her own pace.
B. The student may study at any time to his or her convenience.
C. They can pursue their chosen career while studying.
D. Their tutorial assistance comes through regular airmail, telephone, etc.
