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[主观题]

Routine newborn screening identified a child with elevated levels of α-ketoacids of the br

anched-chain amino acids. A certain subset of such children will respond well to which of the following vitamin supplementation?

A、Niacin

B、Riboflavin

C、B12

D、B6

E、Thiamine

提问人:网友xiajkl987 发布时间:2022-01-07
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更多“Routine newborn screening iden…”相关的问题
第1题
C???????????????????????????????????????????Are so...

C

Are some people born clever and others born stupid? Or is intelligence developed by our environment and our experiences? Strangely enough, the answer to both these questions is yes. To some extent our intelligence is given us at birth, and no amount of special education can make a genius(天才)out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his / her intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person’s intelligence are fixed at birth, but whether or not he / she reaches those limits will depend on his / her environment. This view, now held by most experts, can be supported in a number of ways.

It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random from the population, it is likely that their degrees of intelligence will be completely different. If on the other hand we take two identical twins, they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth.

Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing,and this indicates that environment as well as birth plays a part.This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all, are likely to have similar degrees of intelligence.

64. The writer holds the view that human beings’ intelligence depends on      .

A) birth

B) education

C) both birth and environment

D) neither birth nor education

65. It can be learned from the passage that if a child is born with low intelligence, he can       .

A) not become a genius.

B) still become a genius if he is given special education.

C) exceed(超过) his intelligence limits in rich surroundings.

D) not fulfill his intelligence in his life.

66. In the second paragraph, “if we take two unrelated people at random from the population” means “if we        ”.

A) pick any two persons.

B) choose two persons who are relatives.

C) take out two different persons on purpose.

D) choose two persons with different intelligence.

67. The example of the twins in the third paragraph is used to show       .

the importance of their intelligence.

the role of environment on intelligence.

the importance of their social positions.

the part that birth plays.

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第2题
Children are born with knowledge of the basic grammatical relations and categories, so it means that the biological basis is the only requirement for the first language acquisition.
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第3题
Are some people born clever, and others born stupidly? 【S1】______

Or is intelligence developed by our environment and our experiences? To some

extent our intelligence is given us at birth,and no amount of special education can do a【S2】______

genius out of a child born with low intelligence.On the other hand, a child who lives in

a bored environment will develop his 【S3】_____ intelligence less than one who lives in a rich and varied surroundings.Thus the limits of【S4】______

a person's intelligence are fixed at birth, whether or not he reaches those limits will

depend on their environment. This view, now held by most experts, can be supported in 【S5】 ______

a number of ways.It is easy to show that intelligence is at some extent something we are【S6】 ______

born with. The closer the blood relationship between two persons, the closer they are

like to be in intelligence.Thus if we take two unrelated people at random from 【S7】______

population,it is likely that their degrees of intelligence will be complete different.If

on 【S8】______

the other hand we take two identical twins,they will very likely be as intelligent as each

other. Relations like brothers and sisters, parents and children usually have different 【S9】______

intelligence. This conclusion is also suggested by the fact that people who live in close

contact with each other,but who is not related at all,are likely to have similar degrees【S10】______

of intelligence.

【S1】

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第4题
酶原缺乏活性的主要原因是:

A、肽链合成时缺少某些肽段

B、活性中心未形成

C、未结合辅酶

D、缺乏必需激活剂

E、存在特定的抑制剂

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第5题

【简答题】A 47-year-old female is brought to the emergency department with complaints of malaise, nausea and vomiting, and fatigue. The patient reveals a long history of alcohol abuse for the last 10 years requiring drinks daily especially in the morning an an “eye opener.” she has been to rehab on several occasions for alcoholism but has not been able to stop drinking. She is currently homeless and jobless. She denies cough, fever, chills, upper respiratory symptoms, sick contacts, recent travel, hematemesis, or abdominal pain. She reports feeling hungry and has not eaten very well in a long time. On physical exam she appears malnourished but in no distress. Her physical exam is normal. Her blood count reveals a normal white blood cell count but does show an anemia with large red blood cells. Her amylase, lipase, and liver function tests were normal. 1.What is the most likely cause of her anemia? 2.What is the molecular basis for the large erythrocytes?

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第6题
【多选题】A 50-year-old man has been trying to lose weight, but he enjoyed eating so much that he found it difficult to do so .He then reads about a product in the popular press, which guarantees that he can lose weight ,as caloric intake due to starch ingestion will be reduced ( a starch blocker). The over-the-counter product that he buys is claimed to inhibit which of the following enzymes?

A、Pancreatic trypsinogen

B、Pancreatic lipase

C、salivary amylase

D、Gastric amylase

E、Intestinal enteropeptidase

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第7题
In a laboratory study, volunteers were made experimentally vitamin B6 deficient, and much to the investigator’s surprise, a mild hypoglycemia, with ketosis, was noted. The hypoglycemia is a result of which of the following?

A、Inhibition of phosphoenolpyruvate carboxykinase

B、Inhibition of pyruvate carboxylase

C、Reduced activity of glucose-6-phosphatase

D、Reduced activity of liver glycogen phosphorylase

E、Reduced insulin secretion

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第8题
deficiency in which of the following vitamins will lead to a functional folate deficiency?

A、Thiamine

B、Niacin

C、Riboflavin

D、B12

E、Vitamin C

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第9题
为了防止酶失活,最好将酶制剂存放于以下什么条件

A、0℃避光

B、室温曝光

C、室温避光

D、最适温度

E、80℃以上

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