在完全竞争市场上,长期厂商的均衡条件是()
A、MR=AR
B、MR=MC
C、MR=AR=MC=AC
D、MR=AR=MC
参考答案:C
--- What kind of house do you want to have? Something big?
--- Well, it be big --- that’s not important.
A.mustn’t
B.needn’t
C.can’t
D.won’t
槽车过磅称得液氧净重3420kg,,换算后为多少方?