首页
登录
职称英语
The word horsepower was first used two hundred years ago. James Watt had made
The word horsepower was first used two hundred years ago. James Watt had made
游客
2024-07-21
22
管理
问题
The word horsepower was first used two hundred years ago. James Watt had made the world’s first widely used (11) . He had no way of telling people exactly how powerful it was, for (12) there were no units for measuring power.
Watt decided to find out how much work one strong horse could do in (13) . He called that unit one horsepower. With this unit he could measure the work his steam engine could do.
He discovered that a horse lift a (14) weight 10 feet in one minute. Because his engine did (15) as much as the horse, Watt called it a ten-horsepower engine.
[br]
The word horsepower was first use two hundred years ago. James Watt had made the world’s first widely used steam engine. He had no way of telling people exactly how powerful it was, for at that time there were no units for measuring power.
Watt decided to find out how much work one strong horse could do in one minute. He called that unit one horsepower. With this unit he could measure the work his steam engine could do.
He discovered that a horse lift a 3300-pound weight 10 feet in one minute. Because his engine did ten times as much as the horse, Watt called it a ten-horsepower engine.
选项
答案
at that time
解析
该题测试听懂时间状语的能力。这里需要填写表示过去时间的介词短语。从上下文中可以判断,这是表示过去时间的短语。因此通过听清发音就可以很容易判断出答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3687429.html
相关试题推荐
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
Companiessometimesreceivehundredsofapplicationsforasinglejob,andi
Companiessometimesreceivehundredsofapplicationsforasinglejob,andi
Companiessometimesreceivehundredsofapplicationsforasinglejob,andi
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmade
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmade
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
Thewordhorsepowerwasfirstusedtwohundredyearsago.JamesWatthadmad
随机试题
Thetipofagirl’s40,000-year-oldpinkyfingerfoundinacoldSiberianc
(1)IcanstillrememberthefaceswhenIsuggestedamethodofdealingwith
[originaltext]WilliamShakespearewaschristenedinthemarkettownofStra
"Blink"TechnologyA)Tiredofallthattime-consumingsw
股权投资基金将其在被投资企业中的股权以协议转让等形式变现,从而退出投资,然后根据
企业风险敞口分为( )这几种类型。 Ⅰ单向敞口 Ⅱ双向敞口 Ⅲ多向敞口
现行规范规定,导航电子地图的道路相对位置精度最低为( )m。A.5 B.8
海关统计的货物进口额是按离岸价格计算的。()
某种饮料浓缩液每箱装12听,不法商人在每箱中换进4听假冒货。今质检人员从一箱中随
某烟厂收购烟叶,支付给烟叶销售者价款600万元,开具烟叶收购发票。该烟厂应缴纳烟
最新回复
(
0
)