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
专升本
Man’s first roan invention, and one of the most important inventions in history, was the wheel. All transportation and every mac
Man’s first roan invention, and one of the most important inventions in history, was the wheel. All transportation and every mac
admin
2011-03-26
64
问题
Man’s first roan 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 an] inventions, because there are no wheels in nature no living thing was ever created with wheels. How, then, did man come to invent the wheel? Perhaps some early hunters found that 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 string 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 cart.
It was remarkable of man to invent the wheel because ______ .
选项
A、it led to many other inventions
B、man had no use for it then
C、there were no wheels in nature
D、all of the above
答案
C
解析
转载请注明原文地址:https://www.kaotiyun.com/show/OsqC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
【端正好】碧云天,黄花地,西风紧,北雁南飞。晓来谁染霜林醉?总是离人泪。【幺篇】年少呵轻远别,情薄呵易弃掷。全不想腿儿相挨,脸儿相偎,手儿相携。你与俺崔相国做女婿,妻荣夫贵,但得一个并头莲,煞强如状元及第。【朝天子】暖溶溶玉醅,白泠泠似
这是一沟绝望的死水,这里断不是美的所在,不如让给丑恶来开垦.看他造出个什么世界。“一沟绝望的死水”指的是什么?
Thewindisblowinghard;(pleaseseethatallthewindowsarefastenedproperly).
Webookedroomsatthehotel______weshouldfindnovacanciesonourarrival.
EverystudentofEnglishneedsagooddictionary,butIcan’tafford______.
Accordingtotheauthor,kidswhohavepoorrelationshipwithclassmates______.WhatdoesthesecondsentenceofParagraph2m
(Theunexpectedreturnofhiswife)gavehimabigsurprise.
Inthecollegeentranceexamination,oneofmystudentsdidverywell_____poorhandwriting.
Nosooner______thanitbegantorain.
随机试题
下列对利率变动的影响最为直接与明显的经济政策是
设函数z=f(eχsiny,3χ2y),且f(u,v)为可微函数,求dz。
A、缺氧B、抑制酶的活性C、局部刺激腐蚀作用D、抑制大脑皮质活动E、受体竞争使用阿托品可导致中毒,其发生机制是
26岁初孕妇,现妊娠40周,近半月头痛、眼花,今晨出现剧烈头痛并呕吐2次,来院就诊。听胎心发现胎心76次/分。具有最重要参考价值的病史是
患者,男,66岁,因慢性阻塞性肺气肿及肺大泡形成,拟行肺减容术。上述患者术毕自主呼吸时动脉血气为:FiO20.21,PaO253mmHg,SaO287%,PaCO252mmHg。最佳的处理方法是
B6050型牛头刨床的型号中,60表示()代号。
学生前后重叠成一行叫________。左右并列成一排叫________。
“学然后知不足,教然后知困。知不足,然后能自反也;知困,然后能自强也。故曰:教学相长。”以上这段我国古代关于“教学相长”的论述出自()。
双因素理论中的双因素指的是()。
已知随机变量X的概率密度为求随机变量Y=1/X的数学期望.
最新回复
(
0
)