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、They are accurate and easy to pull. B、Their shooting range is 40 yards. C、They are usually used indoors. D、They took 100 years
A、They are accurate and easy to pull. B、Their shooting range is 40 yards. C、They are usually used indoors. D、They took 100 years
admin
2013-01-20
28
问题
Bows and arrows are one of the man’s oldest weapons. They gave early man an effective weapon to kill his enemies. The ordinary bow or short bow was used by nearly all early people. These bows had limited power or short range. However, man overcame these faults by learning to track his target at close range. The long bow was most likely discovered when someone found out that a five-foot piece wood made a better bow than a three-foot piece. Hundreds of thousands of these bows were made and used for three hundred years. However, not one is known to survive today. We believe that force of one hundred pounds was needed to pull the string all the way back on the long bow. For a long time, the bow was just a bent stick and a string. In fact, more changes have taken place in the bow in the past 25 years than in the last 7 centuries. Today’s bow is forceful. It is as exact as a gun. In addition, it requires little strength to draw the string. Modem bows also have precise aiming devices. In indoor contests, perfect scores from 40 yards are common. The invention of the bow itself ranks with the discovery of fire and the wheel. It was a great step forward for man.
选项
A、They are accurate and easy to pull.
B、Their shooting range is 40 yards.
C、They are usually used indoors.
D、They took 100 years to develop.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/lnu7777K
0
大学英语四级
相关试题推荐
Lastyear’seconomyshouldhavewontheOscarforthebestpicture.Growthingrossdomesticproductwas4.1percents)profits
InbothChinaandDenmarkchildrenare【S1】______andtheyreceiveagreatdealofattention.However,thewaychildrenareraised
Inacompetitiveeconomy,theconsumerusuallyhasthechoiceofseveraldifferentbrandsofthesameproduct.Yetunderneathth
UniversitiesmustdealbetterwithcomplaintsWithstudentcomplaintsatarecordhigh,universitieswillhavetoraisetheirga
Distancelearninghasmovedfarawayfromthetraditionalcorrespondencecourse,aimedattheindividualstudentworking【S1】____
A、Meetaclient.B、Preparethedinner.C、Datewithafriend.D、Pickupthewoman.A对话中男士先拒绝了下班接女士的请求,并说明要在晚餐时间约见一位客户,由此可知答案为A)。I
RaisingWiseConsumersAlmostanyonewithaprofitmotiveismarketingtoinnocents.Helpyourkidsunderstandit’sOKnott
A、Becausetheywereholdingapartyonthestreet.B、BecausetheywerecelebratingInternationalWomen’sDay.C、Becausetheywan
In2010,PamelaFink,anemployeeofaConnecticutenergycompany,madeanewkindofdiscriminationclaim:shechargedthatshe
随机试题
健康教育过程模式由三个阶段组成是:评估阶段、执行阶段、____________。
患者,女,25岁。发热伴头晕、乏力和牙龈出血1周,既往体健。查体:体温38℃,皮肤见散在出血点,浅表淋巴结均未触及,巩膜无黄染,心肺未见异常,胸骨有明显压痛,腹平软,肝脾肋下未触及。化验血红蛋白85g/L,MCV88fl,白细胞3.0×109/L,血小板1
A.双侧滑动-单侧滑动-双侧滑动B.双侧转动-双侧滑动-双侧转动C.一侧滑动-侧转动D.双侧转动-双侧滑动E.双侧滑动-双侧转动
2011年2月,史某因做生意借丁某5万元钱,史某向丁某出具了借条,言明使用三个月.利息2000元。但史某生意失败,无钱还账.丁某多次催要。2011年7月6日,史某到丁某家,见只有丁某一人在家,就用随身携带的一把刀威逼丁某,并把丁某打成轻伤,逼迫丁某将借条交
玻璃板块加工应在洁净、通风的室内注胶。要求室内洁净,温度应在15℃~30℃之间,相对湿度在()以上。
阳性强化法属于()。
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
法律权威是就国家和社会管理过程中法律的地位和作用而言的,是指法的不可违抗性。树立和维护社会主义法律权威的重要意义在于
设f(x)在[0,2]上连续,且f(0)=0,f(1)=1.证明:存在ε∈[0,2],使得2f(0)+f(1)+3f(2)=6f(ε).
海外人才
最新回复
(
0
)