以下说法中正确的()A、如果李明选择上学而不是当兵,则它的机会成本等于他在学习期间的

题型:单项选择题

问题:

以下说法中正确的()

A、如果李明选择上学而不是当兵,则它的机会成本等于他在学习期间的学费

B、在经济分析中厂商的会计成本与机会成本这两个词是同一个意思

C、如果连续地增加某种商品的产量,他的机会成本将递增

D、如果连续地增加某种商品的产量,他的机会成本将递减

考点:微观经济学微观经济学综合练习微观经济学综合练习题库
题型:单项选择题

根据对话情景和内容,从对话后所给的选项中选出能填入每一空白处的最佳选项,并在答题卡上将该选项涂黑。选项中有两个为多余选项( E涂AB, F涂AC,G涂AD)

--Hello,Cathy. How are you today? I heard you were ill last week.

--I’m fine now. Thank you, Peter.

--What was the matter?    小题1:  

--Oh, no. I had a bad cold and had to stay in bed for two days.

--  小题2:    Anyway, what about your friend , Ann? I heard she was ill, too.

--She was ill, but she’s all right now.

--  小题3:   One day is hot and the next day is cold.

--And very windy, too. That’s why I’m wearing a sweater today. What do you think of it? Pretty, isn’t it?

--It certainly is.    小题4:  Where did you buy it?

--Oh, my6 mother bought it for me. It was on sale. It was very cheap.

-- 小题5: 

--Really? Thank you.

A.Not so serious.

B.I like it very much.

C.I’m glad you’re better.

D.It must have cost a lot.E. Nothing serious I hope.

F. Everybody seems to have a cold now.

G. Well, I must say, it suits you very well.

题型:单项选择题

过期妊娠的超声表现为()。

A.羊水过多

B.肾体积增大

C.宫颈管扩张

D.胎盘老化

E.右枕前位

题型:单项选择题

惊厥持续状态,制止惊厥首选()

A.苯巴比妥

B.副醛

C.地西泮

D.水合氯醛

E.苯妥英钠

题型:单项选择题

患者男性,63岁,心前区持续疼痛5h,确诊为急性心肌梗死收入监护室。监测中发现患者出现心室颤动,此时责任护。士应即刻采取的首要措施是

A.静脉注射利多卡因
B.静脉注射异丙肾上腺素
C.安装心脏起搏器
D.非同步直流电除颤
E.同步直流电除颤

题型:单项选择题

早期广域网中广泛使用的X.25通信于网,从交换技术上看,是一种典型的( )。

A.分组交换网

B.ATM交换网

C.线路交换网

D.动态交换网

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