首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Vitamins are organic compounds necessary in small amounts in the diet for the normal growth and maintenance of life of animals,
Vitamins are organic compounds necessary in small amounts in the diet for the normal growth and maintenance of life of animals,
admin
2011-05-26
31
问题
Vitamins are organic compounds necessary in small amounts in the diet for the normal growth and maintenance of life of animals, including man.
They do not provide energy,【21】do they construct or build any part of the body. They are needed for【22】foods into energy and body maintenance. There are thirteen or more of them, and if【23】is missing a deficiency disease becomes【24】.
Vitamins are, similar because they are made of the same elements--usually carbon, hydrogen, oxygen, and【25】nitrogen. They are different【26】their elements are arranged differently, and each vitamin【27】one or more specific functions in the body.
【28】enough vitamins is essential to life, although the body has no nutritional use for【29】vitamins. Many people,【30】, believe in being on the "safe side" and thus take extra vitamins. However, a well-balanced diet will usually meet all the body’s vitamin needs.
选项
A、undertakes
B、holds
C、plays
D、performs
答案
D
解析
perform“执行,履行”常与function,task,duty等搭配,perform functions“起作用”正好符合句意。undertake“从事”、hold“举行”、play“扮演”都不能构成搭配。
转载请注明原文地址:https://kaotiyun.com/show/RolC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
HereturnedtotheU.S.______anabsenceofnearlyfiftyyears.
Atornadois______.ThepersonwhofoundAmy’sbabywas______.
Thefreedomtomakesuchpersonaldecisionsisafundamentalaspectofoursociety,althoughthewisdomofthesedecisionscan
Thechiefengineerinchargeoftheresearchprojectsaiditwastooearlyasyetto______(summary)anyresults.
Mr.Browntelephonedthepolicewhenhecouldnot______withthenoisefromhisneighbouranymore.
Itisreportedthattrafficaccidentsarehappeninginthatcitywithincreasing______(frequent).
Althoughhumanerrorplaysitspart,itisbynomeanstheonlycauseofaccidents.
Whatkindsofthingshaveactivistsdonetoprotectresearchanimals?Thepurposefortheactiviststobeagainstresearchersi
A.Pleasetellhertohethereontime.B.OK,dear.C.MayIspeaktoAnn,please?D.Well,that’sgreat.E.Who’sthat(speaki
A.Pleasetellhertobethereontime.B.OK,dear.C.MayIspeaktoAnn,please?D.Well,that’sgreat.E.Who’sthat(speakin
随机试题
评估CR激光束功能不包括
患者肢体关节疼痛较剧,痛有定处,得热痛减,遇寒痛增,疼痛局部皮色不红,触之不热,舌苔薄白,脉弦紧。治疗应首选()
青少年期心理卫生的重点是
A、通宣理肺丸B、养阴清肺丸C、蛇胆川贝液D、参贝北瓜膏E、苏子降气丸治阴虚肺燥,咳嗽宜用()。
小学生小杰和小涛在学校发生打斗,在场老师陈某未予制止。小杰踢中小涛腹部,致其脾脏破裂。下列哪一选项是正确的?
下列关于海关保税场所保税货物存放时间的表述正确的是:
当国家财政发生赤字,用()弥补时,就会引起通货膨胀。
对联是我国的传统文化艺术形式,又由于对时节的重视,在逢年过节之时张贴对联成为中华民族的一大风俗习惯。以下是我国几个传统节日的对联,题中描述的节日对应错误的是()。
某商品的订购量、市场需求、利润情况见表16-6。在三种市场需求概率相等的情况下,订购250台的利润期望值为(50)元,订购(51)台的利润期望值为最大。去年该商品的市场需求情况见表16-7,市场需求100台的概率为(52),根据去年市场需求概率,订购250
HelicopterMomsVS.Free-RangeKidsA)Wouldyouletyourfourth-graderridepublictransportationwithoutanadult?Probablynot
最新回复
(
0
)