首页
登录
职称英语
A great change in agriculture in the 19th century included two things: the i
A great change in agriculture in the 19th century included two things: the i
游客
2024-07-18
48
管理
问题
A great change in agriculture in the 19th century included two things: the invention of labor-saving machines and the development of scientific agriculture. Labor-saving machines naturally appeared first where more labor was needed. "In Europe," said Thomas Jefferson, "the object is to make good use of their land, labor being abundant(充裕的); here it is to make good use of our labor, land being abundant." It was in America, therefore, that the great advances in the 19th century agricultural machines first came.
At the opening of the century, with the exception of a crude plow, farmers could have carried practically all of the existing agricultural tools on their backs; by 1860, most of the machines in use today had been designed in an early form. One of the most important early inventions was the iron plow. As early as 1790 Charles Newbold of New Jersey had been working on the idea of a cast-iron plow and spent his entire fortune in introducing his invention. The farmers, however, would have none of it, declaring that the iron poisoned the soil and made the weeds grow, however, many people devoted their attention to the plow; until in 1869 James Oliver of South Bend, Indiana, turned out the first chilled-steel plow. [br] ______, the first chilled-steel plow made their appearance.
选项
A、In the 18th century
B、In 1869
C、In 1860
D、As early as 1790
答案
B
解析
事实细节题。题目询问最早的冷铸钢犁是何时出现的。本题答案可从文章第二段末句得出:在1869年詹姆士·奥利弗生产出最早的冷铸钢犁。因此,选项B为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3682753.html
相关试题推荐
InAmerica,peopledomostthingsbythemselvesbecause______.[br]"Me-books’
AlbertEinstein,thegreatestscientistinthe20thcentury,once______anoffer
Whydoesthecompanymakethesechanges?Becauseof_________.[br]Inorder
Whydoesthecompanymakethesechanges?Becauseof_________.[br]Atwhatt
Whydoesthecompanymakethesechanges?Becauseof_________.[br]Wheredo
Youcannotcancelyourorder______youchangeyourmindwithinthreedays.A、asif
A—intermediatetradeB—mutualexchangeofneededproducts
Wedemandthatthetourguide(tell)______usimmediatelyaboutanychangeint
Manyofushaveavaguefeelingthatthingsaremovingfaster.Doctorsande
Healthisthebestwealththatamancanpossess,whilemoneycandomanythings
随机试题
arrivepastfinishedhurrymusthardworryalreadyW
WhichofthefollowingisNOTtrueaccordingtothepassage?[br]Theword"affe
肝细胞内玻璃样变性,可见A.Russell小体 B.Negri小体 C.Ma
在招标文件要求提交投标文件截止时间至少()日前,招标人可以以书面形式对已发
既能泻水逐饮,又能消肿散结的药物是A.大黄B.番泻叶C.巴豆D.甘遂E.芫花
从儿童社会心理发展的角度来看,幼儿时期的儿童需要完成()人格的培养。A:信任
国家垄断资本主义有很大发展并成为资本主义发展的一个新阶段是在 A.19世纪末
在一次人民法院的法庭审判过程中,被告人的家属在旁听席上哄闹法庭,甚至要殴打审判人
下列产品中,不属于资源税征税范围的是()。A.人造石油 B.海盐 C.天然
下列关于项目建设规模的合理性分析的表述,错误的是() A.确定建设规模时应考
最新回复
(
0
)