首页
登录
职称英语
Vitamins are organic compounds necessary in small amounts in the diet for th
Vitamins are organic compounds necessary in small amounts in the diet for th
游客
2025-04-03
22
管理
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, 【C1】______do they construct or build any part of the body. They are needed for【C2】______foods into energy and body maintenance. There are thirteen or more of them, and if 【C3】______is missing a deficiency disease becomes【C4】______.
Vitamins are similar because they are made of the same elements—usually carbon, hydrogen, oxygen, and【C5】______nitrogen. They are different【C6】______their elements are arranged differently, and each vitamin【C7】______one or more specific functions in the body.
【C8】______enough vitamins is essential to life, although the body has no nutritional use for 【C9】______vitamins. Many people, 【C10】______, 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. [br] 【C1】
选项
A、either
B、so
C、nor
D、never
答案
C
解析
选项必须既能引导倒装句,又能与前面的否定相呼应。either表示“也”,可以用在否定句中,但一般放在句尾;so可以引导倒装句,但它用在肯定句中,表示“也”,nor也可以引导倒装句,并可用在否定句中,构成not...nor…(既不……也不……)固定结构,never也可以引导倒装句,表示否定,但它必须放在句首。故选C。
转载请注明原文地址:https://tihaiku.com/zcyy/4024235.html
相关试题推荐
Beforeyoucanstartabusiness,youwillhavetoraisethenecessary______.A、in
Togettheshipbackintofullworkingorderwould______spendinghugeamountsof
Criticismandself-criticismisnecessary______ithelpsustofindandcorrecto
Criticismandself-criticismarenecessary______theyhelpustofindandcorrect
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthe
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthe
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthe
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
Vitaminsareorganiccompoundsnecessaryinsmallamountsinthedietforth
随机试题
•Lookatthenotesbelow.•Youwillhearamantelephoningasportscentre.•
Notasinglemistake_____inthetest.A、hemadeB、didhemakeC、hehasmadeD、mad
Shebrokeoffwithalittleshudder.ItwasarelieftoFramtonNuttelwhen
TheTelecommunicationsRevolutionA)Atransformationisoccu
A.0 B.1 C.2 D.3
3幕4场话剧《天下第一楼》是()创作的。A.李龙云 B.何冀平 C.许瑞生
某饱和土样的天然含水率ω=20%,土粒比重Gs=2.75,该土样的孔隙比为(
2008年末比上年增长了: A2.53% B1.97% C1.
对存在标的资产的亏损合同,企业应首先对标的资产进行减值测试,并按规定确认减值损失
下列材料中,属于土工复合材料的有()。A.土工网 B.塑料排水带 C.软式排
最新回复
(
0
)