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
A、The right hand. B、The left hand. C、Both hands. D、It depends. B原文提到,婴儿16周大时,主垂使用左手进行触摸,因此B正确。
A、The right hand. B、The left hand. C、Both hands. D、It depends. B原文提到,婴儿16周大时,主垂使用左手进行触摸,因此B正确。
admin
2018-05-10
29
问题
Approximately 90% of people in the world are naturally right-handed. Why is this so, and are we born one way or the other? The answer to this question is rather complicated.
In babies and young children, no single side becomes dominant until around the age of eight. At 12 weeks, babies usually use both hands equally, but by 16 weeks, they mostly use the left hand for touching.[21]By 24 weeks, they have changed again and start using both hands. Then at 28 weeks, they become one-handed again, although this time it is the right hand that is used more. At 32 weeks, they start using both hands again. Whan they reach the age of 36 weeks, there is another change, with most babies now preferring to use the left hand. Between 40 and 44 weeks, the right hand is once again more used. At 48 weeks, babies switch to using their left hands again, and then between 52 and 56 weeks, the right hand takes over.
There are further changes still. At 80 weeks, the right hand loses control, and both are used again equally. When the young child reaches the age of two, the right hand takes over again, but between two and a half and three years, both hands are used equally. Things finally become stable at around four years and stay the same until, by the age of eight, one hand is strongly dominant over the other.
19. Which hand do babies use most of touching when they are at 16 weeks?
20. Until how old will a child’s one hand be strongly dominant over the other?
21. What do we learn about babies’ using their hands?
选项
A、The right hand.
B、The left hand.
C、Both hands.
D、It depends.
答案
B
解析
原文提到,婴儿16周大时,主垂使用左手进行触摸,因此B正确。
转载请注明原文地址:https://kaotiyun.com/show/EG47777K
0
大学英语四级
相关试题推荐
Divorcedoesn’tnecessarilymakeadultshappy.Buttoughingitoutinanunhappymarriageuntilitturnsaroundjustmightdo,a
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestudyofthesea".Beforethenineteenthcentury,s
Howdidtheearlypeopledotheircounting?Atfirst,theydidalltheircountingwithsmallstones.Later,theylearnedtouse
Howdidtheearlypeopledotheircounting?Atfirst,theydidalltheircountingwithsmallstones.Later,theylearnedtouse
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmostareligion.Thousandsofsportsfansbuyexpensivetic
Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humidorpollutedoutsideair,theyposemanypotentialhea
A、Heisadoctor.B、Heisapsychologist.C、Heisafinancialtrader.D、Heisaprofessor.C录音一开始女士问男士为什么他的工作以压力大而著称,男士回答的时候提到两种
A、2yearsold.B、3yearsold.C、4yearsold.D、8yearsold.D选项都是岁数,这些数字可能在原文中都出现过,这就要求在听录音的同时,听到每一个数字都要在旁边做笔记。原文两次提到,直到8岁时儿童的某只
A、Copperandiron.B、Copperandtin.C、Ironandtin.D、Copperandzinc.B短文提到:“过了一些时候,人类知道了如何制造我们现在称之为青铜的东西。青铜是铜和锡的合金。”B正确。具体的物质
A、Totakemedicine.B、Tosleepmore.C、Toworkless.D、Togotraveling.A本题符合短文听力“听到什么就选什么”的原则。原文说病人控制焦虑症的最好方法是服用药物。因此A正确。语义突出之处
随机试题
在网页中,超链接具有各种各样的外观形状,可以是各种颜色的文字,但不能是图形和图像。()
A、引导性组织再生术+植骨术B、改良Widman翻瓣术C、根向复位瓣术D、截根术E、牙龈切除术下列情况最可能采取的术式右下第一磨牙Ⅱ°根分叉病变,龈缘高度低,角化龈过窄,牙周袋底超过膜龈联合
下列不属于临床预防服务内容的是()
患者,女性,63岁。COPD病史10年,入冬后受凉感冒急性发作入院。患者痰多黏稠,不宜咳出,今晨翻身时突然出现面色发绀,烦躁不安,护士应立即采取的措施是
下列说法中正确是哪一个:()
下列关于银行保函业务的表述,正确的有()。
游客在野外被毒蛇咬伤,导游人员首先应该()。
6辆汽车排成一列纵队,要求甲车和乙车均不在队头或队尾,且正好间隔两辆车。问共有多少种不同的排法?
流动资产是指流动性大,周转期短,并占企业全部投资较大比重的资产,因此,不属于流动资产。______
DictationListentothepassage.Forquestions21~25,fillintheblankswiththeexactwordsorphrasesyouhear.Therei
最新回复
(
0
)