首页
登录
职称英语
[originaltext] Man’s first real invention, and one of the most important inv
[originaltext] Man’s first real invention, and one of the most important inv
游客
2024-05-12
5
管理
问题
Man’s first real invention, and one of the most important inventions in history, was the wheel. All transportation and every machine in the world depend on it. The wheel is the simplest yet perhaps the most remarkable of all inventions. Because there are no wheels in nature, no living things was ever created with wheels. How, then, did man come to invent the wheel?
Perhaps some early hunters found that they could roll the body of a heavy animal through the forest on logs mole easily than they could carry it. However, the logs themselves weighed a lot. It must have taken a great prehistoric thinker to imagine two thin slices of log connected at their centers by a strong stick. This would roll along just as the logs did, yet be much lighter and easier to handle. Thus the wheel and axle came into being, and with them the first carts.
选项
A、A round piece of stone.
B、A heavy log.
C、Two slices of log connected at their centers by a strong stick.
D、A piece of metal.
答案
C
解析
According to this passage,what might be the first wheel?
转载请注明原文地址:https://tihaiku.com/zcyy/3595263.html
相关试题推荐
[originaltext]W:Iwaswonderingifyou’dletmestaywithyouforafewdays.
[originaltext]W:Iwaswonderingifyou’dletmestaywithyouforafewdays.
[originaltext]W:Iwaswonderingifyou’dletmestaywithyouforafewdays.
[originaltext]Why,youmaywonder,shouldspidersbeourfriends?(26)Beca
[originaltext]Why,youmaywonder,shouldspidersbeourfriends?(26)Beca
[originaltext]Advertisementcanbethoughtofas"themeansofmakingknown
[originaltext]Advertisementcanbethoughtofas"themeansofmakingknown
[originaltext]Advertisementcanbethoughtofas"themeansofmakingknown
[originaltext]W:Hey,Jim,whatacoincidencetoseeyouhere!Longtimenosee
[originaltext]W:Hey,Jim,whatacoincidencetoseeyouhere!Longtimenosee
随机试题
Therearetwofactorswhichdetermineanindividual’sintelligence.Thefirs
14g某气体的分子数与l4gC0的分子数相等.标准状况下该气体的密度是( )A
新巴里斯城的城市市场、东京代代木国立室内综合竞技场大小体育馆、甘地纪念馆的设计者
对于不能计算工程量的措施项目,当按施工方案计算措施费时,若无“计算基础”和“费率
( )属于基金管理公司风险管理的基本原则。A.公平性原则 B.时序性原则
促红素能调节红细胞生成,下列何项是促红素化学物质基础()A.是一种糖蛋白B.是
氟乙酰胺中毒的特效解毒剂A.维生素K1 B.亚甲蓝 C.乙酰胺 D.解磷定
为了保证培训取得预期的效果,必须对培训进行全程( )。A.监控和反馈 B.监
房地产中介服务人员在房地产中介活动中不得有的行为包括()A:不允许他人以自己的名
对癌症晚期患者慢性持续止痛,可选用A.丁溴东莨菪碱片 B.芬太尼注射剂 C.
最新回复
(
0
)