相关试题
【单选题】
关于胃酸分泌的描述，错误的是___
A. 由壁细胞分泌
B. 分泌过程是耗能的
C. 质子泵在 H+分泌过程中起关键作用
D. 胃酸分泌增多时，血浆 pH 值下降
【单选题】
胰液中碳酸氢盐的作用是___
A. 使蛋白质变性而易于消化
B. 与脂肪酸形成复合物，促进其吸收
C. 中和进入十二指肠的胃酸
D. 激活胰蛋白酶原
【单选题】
胰蛋白酶原的主要激活物是___
A. 盐酸
B. 肠激酶
C. 胃蛋白酶
D. 胰蛋白酶
【单选题】
与脂肪消化、吸收有关的胆汁成分是___
A. 胆盐
B. 胆固醇
C. 胆色素
D. 卵磷脂
【单选题】
由胆盐帮助吸收的物质是___
A. 甘油和脂肪酸
B. 甘油和脂溶性维生素
C. 甘油一脂、脂肪酸、脂溶性维生素
D. 甘油一脂和水溶性维生素
【单选题】
关于胃蛋白酶的描述，正确的是___
A. 由壁细胞分泌
B. 初分泌就具有活性
C. 能使蛋白质变性
D. 只有在酸性环境中才能发挥作用
【单选题】
参与脂肪分解的消化液主要有___
A. 胃液和小肠液
B. 唾液和胃液
C. 胃液和胰液
D. 胰液和胆汁
【单选题】
胰液分泌缺乏时主要影响___
A. 脂肪和蛋白质的消化
B. 蛋白质的消化
C. 糖的消化
D. 维生素的吸收
【单选题】
关于小肠液的描述，错误的是___
A. 小肠液为弱碱性液体
B. 分泌量大
C. 含多种消化酶
D. 主要作用是稀释消化产物，降低其渗透压，利于消化和吸收
【单选题】
关于排便反射的叙述，正确的是___
A. 感受器是直肠壁上的压力感受器
B. 效应器是降结肠乙状结肠壁平滑肌和肛门外扩约肌
C. 阴部神经是自主神经，支配的肛门内括约肌
D. 排便反射是负反馈
【单选题】
关于唾液的作用，错误的有___
A. 湿润和溶解食物
B. 清洁口腔
C. 将淀粉分解为葡萄糖
D. 杀菌
【单选题】
关于胃粘液屏障的叙述，错误的有___
A. 由粘液和HC0 -组成
B. 具有中和胃酸的作用
C. 具有润滑和保护胃粘膜作用
D. 营养作用
【单选题】
促进胃液分泌的因素有___
A. 胃酸增多
B. 高蛋白食物
C. 高渗性食物
D. 高糖食物
【单选题】
蛋白质的主要吸收形式是___
A. 䏡和胨
B. 多肽
C. 二肽
D. 氨基酸
【单选题】
以淋巴管为主要吸收途径的物质是___
A. 单糖
B. 氨基酸
C. 脂肪颗粒
D. 无机盐
【单选题】
下列与肾脏排泄功能无关的是___
A. 分泌肾素
B. 维持机体水和电解质的平衡
C. 维持机体酸碱和渗透压的平衡
D. 排出代谢终产物
【单选题】
排泄产物的种类最多、数量最大的器官___
【单选题】
下列哪种物质不是肾分泌的生物活性物质___
A. 1.25-二羟维生素 D3
B. 去甲肾上腺素
C. 促红细胞生成素
D. 肾素
【单选题】
和尿生成无关的结构是___
A. 肾小体
B. 肾小管
C. 集合管
D. 肾盂
【单选题】
关于肾单位的描述，错误的是___
A. 是肾脏的基本结构功能单位
B. 与集合管共同完成泌尿功能
C. 包括肾小体和集合管
D. 皮质肾单位的肾小体位于肾皮质内
【单选题】
肾血流量自身调节的血压波动范围是___
A. 50～100mmHg
B. 60～120mmHg
C. 80～180mmHg
D. 1OO～200mmHg
【单选题】
球旁细胞（近球细胞）的主要功能是___
A. 感受小管液中NaCl 浓度变化
B. 释放肾素
C. 调节肾素的释放
D. 向致密斑传递信息
【单选题】
关于肾小球滤过膜的描述，错误的是___
A. 由肾小球毛细血管内皮细胞、基膜和肾小囊脏层上皮细胞三层构成
B. 基膜对滤过膜的通透性起决定性作用
C. 生理情况下，其滤过膜的面积保持相对恒定
D. 带负电荷的分子更容易通过
【单选题】
肾小球滤过时，促进血浆滤出的直接动力是___
A. 肾动脉血压
B. 肾小球毛细血管血压
C. 入球小动脉血压
D. 血浆胶体渗透压
【单选题】
肾小球滤过率是指___
A. 两侧肾脏每小时生成的原尿量
B. 一侧肾脏每小时生成的原尿量
C. 两侧肾脏每分钟生成的原尿量
D. 一侧肾脏每分钟生成的原尿量
【单选题】
下列哪种情况，可引起肾小球滤过率降低___
A. 肾小球毛细血管血压升高
B. 肾小球滤过面积减小
C. 血浆晶体渗透压增高
D. 肾小囊内压降低
【单选题】
下列哪种情况，不会使肾小球滤过率发生明显改变___
A. 血压在 80～140mmHg 范围内波动
B. 血压降低至 60mmHg
C. 血压升高至 200mmHg
D. 入球小动脉收缩
【单选题】
下列哪种情况，可引起肾小球滤过率升高___
A. 血浆胶体渗透压升高
B. 血浆胶体渗透压降低
C. 血浆晶体渗透压升高
D. 血浆晶体渗透压降低
【单选题】
关于肾小球滤过作用的描述，正确的是___
A. 原尿和血浆的成分差异在有无纤维蛋白原
B. 原尿中无血细胞和大分子蛋白质
C. 血浆胶体渗透压越大，有效滤过压越大
D. 肾血浆流量越大，肾小球滤过率越小
【单选题】
在肾脏病理情况下，出现蛋白尿的原因是___
A. 滤过膜的通透性增大
B. 肾小球毛细血管血压升高
C. 肾小管对蛋白质重吸收减少
D. 血浆蛋白浓度升高
【单选题】
下列哪种情况不会出现糖尿现象___
A. 血糖浓度为 11mmol/L
B. 一次大量摄入糖类食物
C. 血糖浓度为 5.9mmol/L
D. 女性妊娠期
【单选题】
肾盂或输尿管发生结石、肿瘤时，不会出现的结果是___
A. 肾盂内压升高
B. 肾小囊内压升高
C. 有效滤过压降低
D. 肾小球滤过率增大
【单选题】
关于重吸收 Na+的描述，正确的是___
A. 肾小管各段均可重吸收 Na+
B. Na+的重吸收对 H+分泌有阻碍作用
C. Na+的重吸收为主动转运
D. Na+的重吸收属于被动重吸收
【单选题】
主动重吸收 Cl-的部位是___
A. 近球小管
B. 髓袢升支细段
C. 髓袢升支粗段
D. 远曲小管
【单选题】
关于 HCO -重吸收的描述，正确的是___
A. 主要在远曲小管重吸收
B. 不需要碳酸酐酶的帮助
C. HCO -是以 CO 的形式从小管液中转运至小管细胞内的
D. Cl-优先于 HCO -重吸收
【单选题】
下列物质中不能被肾小管重吸收的是___
A. Na+
B. 肌酐
C. HCO -
D. 氨基酸
【单选题】
Na+和水流经近端小管后，被重吸收回血液的量是___
A. 65％～70％
B. 70％～75％
C. 75％～80％
D. 80％～99％
推荐试题
【单选题】
A pair of spectacles ___ what I need at the moment.
A. is
B. are
C. has
D. have
【单选题】
— Five days ___ too long for me to wait.
A. was
B. were
C. is
D. are
【单选题】
You had better ___ a doctor as soon as possible.
A. seeing
B. saw
C. see
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【单选题】
The boy is not happy at the new school. He has ___ friends there.
A. few
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I fell and hurt myself while I ___ basketball yesterday.
A. was playing
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【单选题】
Tom ___ more than twenty pounds on the novel.
A. spent
B. paid
C. cost
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【单选题】
Don't forget ____ the window before leaving the room.
A. to have closed
B. to close
C. having closed
D. closing
【单选题】
Twenty people were___ wounded in the air crash.
A. quickly
B. wrongly
C. bitterly
D. seriously
【单选题】
The top of the Great Wall is ___ for five horses to go side by side.
A. wide
B. so wide
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【单选题】
We’ve missed the last bus. I'm afraid we have no ___but to take a taxi.
A. way
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【单选题】
Nancy is considered to be ____ the other students in her class.
A. less intelligent
B. the most intelligent
C. intelligent as well
D. as intelligent as
【单选题】
It's _____ that he was wrong.
A. clearly
B. clarity
C. clear
D. clearing
【单选题】
There ____ a book and some magazines on the desk.
A. is
B. be
C. have
D. has
【单选题】
She is not only my classmate _____ also my good friend.
A. or
B. but
C. and
D. too
【单选题】
He asked the waiter ___ the bill.
A. on
B. of
C. for
D. after
【单选题】
_____ you are leaving tomorrow, we can have dinner together tonight.
A. Since
B. While
C. For
D. Before
【单选题】
I would like to do the job ___ you don't force me to study.
A. in case
B. although
C. though
D. as long as
【单选题】
The reason I did not go abroad was ___ a job in my home town.
A. because
B. due to
C. that I got
D. because of getting
【单选题】
_____ she survived the accident is miracle.
A. What
B. That
C. As
D. Which
【单选题】
I often see ____ the road on his way home.
A. he cross
B. him cross
C. him crossed
D. he crossing
【单选题】
His mother _______ alone since his father died.
A. lived
B. lives
C. has lived
D. is living
【单选题】
The workers are busy _____ models for the exhibition.
A. to make
B. with making
C. being making
D. making
【单选题】
It was well known that Thomas Edison _______ the electric lamp.
A. discovered
B. invented
C. found
D. developed
【单选题】
She wonders ____ will happen to her private life in the future.
A. that
B. it
C. this
D. what
【单选题】
The higher the temperature, _____ the liquid evaporates.
A. the faster
B. the more fast
C. the slower
D. the more slower
【单选题】
Australia is one of the few countries ______ people drive on the left of the road.
A. which
B. that
C. where
D. on which
【单选题】
Sunday is the day ____ people usually don't go to work.
A. when
B. which
C. in which
D. that
【单选题】
____ you know, David has been well lately.
A. Which
B. As
C. What
D. When
【单选题】
The harder you study, _____ you will learn.
A. much
B. many
C. the more
D. much more
【单选题】
They got there an hour _____ than the others.
A. early
B. much early
C. more early
D. earlier
【单选题】
The grey building is the place where the workers live, and the white building is the place where the spare parts ____ .
A. are producing
B. are produced
C. produced
D. being produced
【单选题】
Once environmental damage ______, it takes many years for the system to recover.
A. is to do
B. does
C. had done
D. is done
【单选题】
We worked hard and completed the task ___.
A. in the time
B. on the time
C. ahead of time
D. before time
【单选题】
I didn't expect you to turn _____ at the meeting yesterday.
A. up
B. to
C. out
D. over
【单选题】
I like the teacher _______ classes are very interesting and creative.
A. which
B. who
C. whose
D. what
【单选题】
When Lily came home at 5 p. m. yesterday, her mother ______ dinner in the kitchen.
A. cooked
B. was cooking
C. cooks
D. has cooked
【单选题】
I don’t know the park, but it's _____ to be quite beautiful.
A. said
B. told
C. spoken
D. talked
【单选题】
Mike is better than Peter ____. swimming.
【单选题】
The young lady coming over to us ______ our English teacher; the way she walks tells us that!
A. must be
B. can be
C. would be
D. could be
【单选题】
Eggs, though rich in nourishments, have ______ of fat.
A. a large number
B. the large number
C. a large amount
D. the large amount
