A.It become easier for factory" owners to find workers and customers.
B.Manufacturers had to employ more highly skilled workers.
C.The amount of power required for factories operate was reduced.
D.Factories could operate more than one engine at a time.
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!