Which of the following statements is NOT true（）
A: The need for labor helped the invention of machinery in America
B: The farmer rejected Charles New bolt's plow for fear of ruin of their fields
C: Both Europe and America had great need for farmer machinery
D: It was in Indiana that the first chilled-steel plow was produced
A: The need for labor helped the invention of machinery in America
B: The farmer rejected Charles New bolt's plow for fear of ruin of their fields
C: Both Europe and America had great need for farmer machinery
D: It was in Indiana that the first chilled-steel plow was produced
举一反三
- Which of the following can be inferred from what Thomas Jefferson said ( ) A: Europe was changing more quickly than America. B: Europe had greater need of farm machinery than America did. C: America was finally running out of good farmland. D: There was a shortage of workers on American farms.
- The passage is mainly about（） A: the agriculture revolution B: the invention of labor-saving machinery C: the development of scientific agriculture D: the farming machinery in America
- Which of the following statements about radio broadcasting in America is NOT true?
- The invention of this new machinery will _________________ the coal industry.
- Which of the following regions is the center of America’s iron and steel industry?