某厂全年需要某种物料7200t,每次订购费为120元,存储费用每月每吨为10元,经济订购批量为()t。
A.180
B.160
C.120
D.100
参考答案:C
In China students _______ greet the teachers when classes begin. [ ]
A. are supposed to
B. are suppose to
C. suppose to
D. are supposing to
会计核算软件在进行系统初始化时,必须输入操作人员岗位分工情况,但为了保密,可以不输入操作密码。( )