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
外语
Blood is vital to maintaining a stable body temperature; in humans, body temperature normally fluctuates within a degree of 37.0
Blood is vital to maintaining a stable body temperature; in humans, body temperature normally fluctuates within a degree of 37.0
admin
2013-04-08
95
问题
Blood is vital to maintaining a stable body temperature; in humans, body temperature normally fluctuates within a degree of 37.0℃. Heat production and heat【B1】______in various parts of the body are balanced out by heat transfer【B2】______tile bloodstream. This is accomplished by varying the【B3】______of blood vessels in the skin. When a person becomes【B4】______, the vessels dilate(膨胀)and an increased volume of blood flows through the skin. Heat dissipates(消散)through the skin, effectively【B5】______the body temperature. The increased flow of blood in the skin makes the skin appear【B6】______or flushed. When a person is cold, the skin may become pale as the【B7】______narrow, diverting blood from the skin and reducing heat loss.
About 55 percent of the blood is【B8】______of a liquid known as plasma(血浆).【B9】______: red blood cells, white blood cells, and platelets.
Blood, vital fluid found in humans and other animals that provides important nourishment to all body organs and tissues and carries away waste materials. Sometimes referred to as "the river of life,"【B10】______
An adult human has about 5 to 6 liters of blood, which is roughly 7 to 8 percent of total body weight.【B11】______.The volume of blood in an individual fluctuates.
【B2】
选项
答案
via
解析
转载请注明原文地址:https://kaotiyun.com/show/A8r7777K
0
大学英语四级
相关试题推荐
Normallyastudentwouldatleastattend______classeseachweek.Thestudentorganizationsseemtobeeffectivein______.
Humansconsumegoodsandservicesformanyreasons:tonourish,clothe,andhouseourselves,certainly.Butwealsoconsumeasp
Humansconsumegoodsandservicesformanyreasons:tonourish,clothe,andhouseourselves,certainly.Butwealsoconsumeasp
A、Becausethenightswerelongerthanthedays.B、Becausetheyfeltsleepieratnightthaninthedaytime.C、Becausetheycould
Mostpeoplethoughtthatthesecompetitorsdidn’t______theirprizesbecausetheycheatedinthecompetition.
Becauseoftheleginjury,______(运动员决定退出比赛).
A、NationalGeographicChannel.B、HBO.C、BBC.D、HistoryChannel.DWhichTVchanneldoesthespeakerliketowatch?此题考查听细节的能力。作者在
Thefarmer______hishorseforthenightattheonlystableintown.
Teachersalwaysplandowntotheminutewhattheirstudentswillbedoing.Thisisgoodforkids,becauseitteachesthemtosta
A、Attheoffice.B、Atschool.C、Atuniversity.D、Inthepark.DWheredidtheyfirstmeet?此题考查听细节信息能力。解题的关键点在于听到youknow,thatda
随机试题
在社会主义初级阶段,发展多种所有制经济的根本原因是()
一个4岁小儿体检心脏大小,哪一个结果是正常的( )。
上海旧时风俗“七夕”也称巧日。()
“宰辅是历代帝王治理国家的辅佐大臣,在古代政治体制中发挥着举足轻重的主导作用,中国古代宰辅制度经历了三个阶段的变化。”这“三个阶段”依次是()。
下列各战役中,属于中国抗日战争中的著名战役的是()。
如图,在单位网格纸上有一个三角形,这个三角形的面积是()。
Students(andothers)often,asIsaidearlier,talkabout"using"thisorthatapproach—"IthinkI’lluseDurkheim"—asthoughthe
1/3
利用日志技术进行数据库恢复时,为了使恢复子系统避免对整个日志文件进行检查,需要在日志文件中增加______记录。
A.stopdoingsomethingB.(ofsb.)needingrestC.fivedaysinaweekD.notcleanE.smokingF.anotherpartofawifeG.Sa
最新回复
(
0
)