单项选择题A.To run his company.B.To choose the right people to work for him.C.To create new ideas.D.Both B and C
单项选择题A.There was a shortage of workers on American farms.B.The most important of the early inventions was the iron plow.C.After 1869, many people devoted their attention to the plow.D.Charles Newbold had made a fortune by his cast-iron plow.