【单选题】在完全竞争厂商的长期均衡产量上必然有
A.
MR=LMC ≠ SMC ,其中 MR=AR=P
B.
MR=LMC=SMC ≠ LAC ,其中 MR=AR=P
C.
MR=LMC=SMC=LAC ≠ SAC ,其中 MR=AR=P
D.
MR=LMC=SMC=LAC=SAC ,其中 MR=AR=P
【单选题】男士双腿并拢,双手放于身体两侧属于( )站姿。
【单选题】在完全竞争厂商的长期均衡产量上必然有
A.
MR=LMC=SMC=LAC ≠ SAC,其中 MR=AR=P
B.
MR=LMC=SMC ≠ LAC,其中 MR=AR=P
C.
MR=LMC ≠ SMC,其中 MR=AR=P
D.
MR=LMC=SMC=LAC=SAC,其中 MR=AR=P
【单选题】男士双腿并拢,双手放于身体两侧属于( )站姿。
【判断题】测量恒星的谱线红移,说明恒星朝向观测者运动。
【单选题】数字通信系统中,下列关于信源编码的描述正确的
【单选题】It can be inferred from the passage that Marie finally resolved to continue with her busi- ness because______.
A.
cancer patients kept writing to her, making orders for the products
B.
the prospect of inheriting the legacy left to her by Barbara cheered her up
C.
she knew she was doing something useful for others
D.
she was determined to make profits from the business