【单选题】在完全竞争厂商的长期均衡产量上必然有
A.
MR=LM C ≠ SMC 式中 MR=AR=P
B.
MR=LMC=SMC ≠ LAC 式中 MR=AR=P
C.
MR=LMC=SMC =LA C ≠ SAC 式中 MR=AR=P
D.
MR=LMC=SMC=LMC=LAC=SAC 式中 MR=AR=P
【单选题】数字通信系统中,下列关于信源编码的描述正确的是
【判断题】珠光体的平均含碳量为0.77% 正确 错误
【单选题】Questions 29-40 •Read the information about the communication of information in business. •Choose the correct word to fill each gap from A, B or C. •For each question (29-40) mark one letter A, B or C...
【单选题】Excess inventory, a massive problem for many busi- nesses, has several causes, some of which are unavoidable. Overstocks may accumulate through production overruns or errors. Certain styles and colors...
A.
production of too much merchandise
B.
inaccurate forecasting of buyers’ preferences
C.
unrealistic pricing policies
D.
products’ rapid obsolescence
E.
availability of a better product
【多选题】数字通信系统中,下列关于信源编码的描述正确的是
【单选题】C语言中,执行下列语句时,要使x和y的值均为1.25,正确的输入是
【判断题】珠光体的平均含碳量为0.77%,其强度、硬度适中,具有一定的塑性。