首页
登录
职称英语
[originaltext] About fifty different vitamins have been identified, and a de
[originaltext] About fifty different vitamins have been identified, and a de
游客
2024-02-07
20
管理
问题
About fifty different vitamins have been identified, and a deficiency in many of these can lead to illness. Vitamin A is most important for good eyesight. Liver contains a considerable amount of vitamin A, but vitamin A is also found in fish, meat, milk, and some fruits and vegetables.
Vitamin B in fact consists of twelve different chemicals, which are found in egg, cheese and vegetables. If a person has an inadequate amount of vitamin B in his or her diet, this may particularly affect the skin, the nervous system and the heart.
Vitamin C helps to heal injuries. Some doctors believe that large quantities of vitamin C helps people avoid colds. Fruits and uncooked vegetables are rich in vitamin C, but when they are overcooked, or left for a long time, they lose most of their vitamins.
Vitamin D is essential for the growth of bones and is found in fish, liver and milk. Vitamin D is the only vitamin which the body can make for itself, but it can only do this if there is sufficient sunlight. A lack of both sunlight and vitamin D can result in disease called rickets, which causes bones to soften.
A well-balanced diet will provide an adequate amount of vitamins.
Questions 19 to 21 are based on the passage you have just heard.
19. Which of the following statements is true?
20. Which vitamin can be made by the human body?
21. Which of the following statement is implied by the speaker?
选项
A、Four different vitamins have been identified till now.
B、A lack of Vitamin B may affect one’ s eyesight.
C、Vitamin A can be found in liver.
D、Even a small quantity of Vitamin C can help people avoid colds.
答案
C
解析
细节辨认题。短文开头提到现在大约50种维生素已经被确定,由此得知选项A错误。短文第三段讲维生素B的作用,缺乏维B影响皮肤、神经系统和心脏,故选项B错误。短文第四段介绍维生素C,很多医生认为大量维C可以避免感冒,故排除选项D。所以选C。
转载请注明原文地址:https://tihaiku.com/zcyy/3428941.html
相关试题推荐
[originaltext]W:Hi,Michael,youdon’tlooksogood.Anythingwrong?M:I’mO
[originaltext]W:Hi,Michael,youdon’tlooksogood.Anythingwrong?M:I’mO
[originaltext]W:Hi,Michael,youdon’tlooksogood.Anythingwrong?M:I’mO
[originaltext]W:Hi,Michael,youdon’tlooksogood.Anythingwrong?M:I’mO
[originaltext]W:Hi,Michael,youdon’tlooksogood.Anythingwrong?M:I’mO
[originaltext]W:Hi,Michael,youdon’tlooksogood.Anythingwrong?M:I’mO
[originaltext]ShelSilversteinwasapoet,writer,composer,singer,musici
[originaltext]ShelSilversteinwasapoet,writer,composer,singer,musici
[originaltext]ShelSilversteinwasapoet,writer,composer,singer,musici
[originaltext]Ifparentsbringupachildwiththeaimofturninghiminto
随机试题
货物移动了位置。Thecargohasshifted.
Readcarefullythefollowingexcerptonterm-timeholidayargumentsintheUK
在windows中,以下命令运行结果中不出现网关IP地址的是().A.arp
A.金黄色葡萄球菌 B.β-溶血性链球菌 C.大肠杆菌 D.脆弱杆菌 E
足月新生儿,女,体重3500g,出生后36小时出现皮肤巩膜黄染,血清总胆红素29
房地产经纪人预约客户看房时,应注意的事项有( )。A.约定具体的看房时间 B
首批应输入下述哪种混合液A、1、2含钠液 B、2、3、1含钠液 C、2、1含
有关单轨系统技术特征的表述,说法正确的有()。A.单向运输能力在1~3万人次
因出现股权分布发生变化导致连续()个交易日不具备上市条件的情形,公司在规定期限内
下列情形中,纳税人应当先向复议机关申请行政复议,对行政复议决定不服,可以再向人民
最新回复
(
0
)