由于张力能调整轧机的负荷,因此增加1机架与2机架之间的张力，1机架和2机架的电机功率也全部降低。
参考答案：错
Amy is very friendly. She is easy to ______. [ ]
A. begin with
B. get along
C. talk about
D. get along with
简述在商品生产和商品交换过程中市场营销职能克服的障碍。
