机会成本

[多选题]在实行工伤社会保险制度的国家中，大体上可分为三种类型。它们是（）。

[单选题]Passage 1    Results showed that at least a tenth of the Harvard first-year undergraduates polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework. An anonymous survey by Harvard's newspaper has revealed a surprising pattern of academic dishonesty among studertts entering the US universities.    The survey by The Harvard Crimson was emailed to the incoming first year undergraduates; 1,600 students responded. Results showed that at least a tenth of the students polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework.    Athletes were apparently the most prone to cheating. 20 percent of students who played a university sport admitted to cheating on an exam compared to 9 percent of students who did not. The survey also revealed that men were not only more likely to cheat but were also more likely to admit to it.    The results, compared to a previous survey done on the class of 2013, suggested that cheating may be becoming more commonplace. Of the outgoing seniors only 7 percent admitted to cheating in an exam and another 7 percent said they had been dishonest on a take-home test. 32 percent of the seniors said they had cheated on homework during their undergraduate years.    The surveys come in the wake of a cheating scandal at the university which saw 120 students investigated for sharing answers on an exam in 2012. One recent graduate stated: "Cheating was commonplace when I was at Harvard, especially with students in their first year or two. I would say as many as 60 per cent of students took notes into some exams. No one really cared the faculty, well some of them at least, seemed to recognize and yet ignore the problem."    In an email to NBC News, Jeff Neal, a Harvard representative, explained that a committee, made up of faculty, staff and students had been established to tackle cheating, which "is a national problem in American education".    He added: "While the vast majority of Harvard and other students do their work honestly, beginning this year Harvard College has implemented a new, more robust strategy of communicating with all students, particularly first-year students, about the importance-and the ways to achieve- academic integrity."    In a rebuff to critics who say university has become little more than an expensive party, 84 per cent of the responding undergraduates fully expected to prioritize their academics over extracurricular activities, sport, employment and their social lives. Not a single student put academics at the bottom of their list. Not content with confining themselves to their degree subject, 59 percent of incoming students expressed a desire to pursue a secondary field of study, and 36 percent hoped to learn a language.What did the results show according to the first two paragraphs?

[多选题]对于（）的企业来说，它们的供应和需求计划是与众不同的。

[单选题]患者，男，45岁，右下后牙突发搏动性疼痛，牙龈出血。口腔有异味。有长期大量吸烟史。提示：基础治疗1个月后左下第一磨牙颊侧根分叉病变Ⅱ度，牙松动（-），牙龈高度正常。提问：针对该患牙，首选（）

[判断题]钢丝绳可以作任意选用，且可超负荷使用

[单选题]指运动到筋疲力尽或主观最大运动强度的试验。一般用于正常人和运动员最大运动能力的研究（）

[单选题]在一个为阿尔兹海默症家属提供的辅导小组中，小组成员普遍因缺乏社会支持而对自己所处的环境感到无助、无力和悲观，在小组工作过程中，工作者通过小组组员之间，组员与社会工作者之间的分享互动，每个人相互支持、互助发展，这体现了小组工作具有的（    ）功能。

[单选题]男性，3岁。右腹股沟可复性包块1年余，玩耍后不停哭闹伴呕吐6小时。查体：右侧阴囊肿胀，内可触及肿块，肿块呈蒂状延至腹股沟部，触痛明显，不可还纳。若肠管已坏死，正确的处理是（）。

[单选题]下列哪一种传染性疾病在康复期会出现角膜混独（）

[问答题]建立科学而有效地公司法人治理结构是建立现代企业制度的一个关键问题，请简要说明公司法人治理结构形成的原因。 

[判断题]现金持有量与持有现金的机会成本成正比例关系；现金持有量越大，机会成本越高。机会成本具有变动成本性质，是决策相关成本。

[单选题]数量折扣视为机会成本时是指放弃可获得的最大订购量折扣而形成的机会成本，等于（）。

[多选题]土地影子价格由土地机会成本和新增资源消耗两部分构成。下列费用中，（）具有土地机会成本性质。

[问答题]机会成本不变和机会成本递增的含义是什么？在什么样的情况下一国的成本不变或递增？

[多选题]土地影子价格由土地机会成本和新增资源消耗两部分构成。下列费用中，具有土地机会成本性质的有（　）。

[单选题]()是指将某种资源用于生产某种产品以后所放弃的该资源用于其他用途可能取得的最大收益。

[名词解释题]机会成本

[名词解释题]机会成本

[名词解释题]机会成本

[名词解释题]机会成本