【单选题】听力原文: In the summer, most people tend to lose weight only to see it return in the winter. This temporary weight loss affects the metabolism for most people in a negative way since it has been clinical...
【多选题】企业在采购材料过程中发生的下列费用中,不计入材料采购成而是列作管理费用的有( )
【单选题】Most people tend to agree _________ one thing :taxes are too high
【判断题】计算机硬件系统和软件系统是相互独立,互不影响的。( )