合同的变更，从原因与程序上看其分类有（）。

[单选题]临床上最常见呕血原因为（）

[单选题]Passage 2Everyone knows that English departments are in trouble, but you can't appreciate just how much trouble until you read the new report from the Modern Language Association. The report is about Ph.D. programs, which have been in decline since 2008. These programs have gotten both more difficult and less rewarding: today, it can take almost a decade to get a doctorate, and, at the end of your program, you' re unlikely to find a tenure-track job.The core of the problem is, of course, the job market. The M.L.A. report estimates that only sixty per cent of newly-minted Ph.D.s will find tenure-track jobs after graduation. If anything, that's wildly optimistic: the M.L.A. got to that figure by comparing the number of tenure-track jobs on its job list(around six hundred) with the number of new graduates(about a thousand). But that leaves out the thousands of unemployed graduates from past years who are still job-hunting-not to mention the older professors who didn't receive tenure, and who now find themselves competing with their former students. In all likelihood, the number of jobs per candidate is much smaller than the report suggests. That's why the mood is so dire-why even professors are starting to ask, in the committee's words, "Why maintain doctoral study in the modern languages and literatures-or the rest of the humanities-at all?"Those trends, in turn, are part of an even larger story having to do with the expansion and transformation of American education after the Second World War. Essentially, colleges grew less elite and more vocational. Before the war, relatively few people went to college. Then, in the nineteen-fifties, the G.I. Bill and, later, the Baby Boom pushed colleges to grow rapidly. When the boom ended, colleges found themselves overextended and competing for students. By the mid-seventies, schools were creating new programs designed to attract a broader range of students-for instance, women and minorities.Those reforms worked: as Nate Silver reported in the Times last summer, about twice as many people attend college per capita now as did forty years ago. But all that expansion changed colleges.In the past, they had catered to elite students who were happy to major in the traditional liberal arts. Now, to attract middle-class students, colleges had to offer more career-focused majors, in fields like business, communications, and health care. As a result, humanities departments have found themselves drifting away from the center of the university. Today, they are often regarded as a kind of institutional luxury, paid for by dynamic, cheap, and growing programs in, say, adult-education. These large demographic facts are contributing to today's job-market crisis: they' re why, while education as a whole is growing, the humanities aren't.Given all this, what can an English department do? The M.L.A. report contains a number of suggestions. Pride of place is given to the idea that grad school should be shorter: "Departments should design programs that can be completed in five years."That will probably require changing the dissertation from a draft of an academic book into something shorter and simpler. At the same time, graduate students are encouraged to "broaden" themselves: to "engage more deeply with technology"; to pursue unusual and imaginative dissertation projects; to work in more than one discipline; to acquire teaching skills aimed at online and community-college students; and to take workshops on subjects, such as project management and grant writing, which might be of value outside of academia. Graduate programs, the committee suggests, should accept the fact that many of their students will have non-tenured, or even non-academic, careers. They should keep track of what happens to their graduates, so that students who decide to leave academia have a non-academic alumni network to draw upon.According to the author, which of the following is the key reason that leads to today's job-market crisis for Ph.D. students?

[单选题]下列哪项用餐礼仪表述错误（）。

[多选题]工程质量监督机构对竣工验收实施的监督包括()。

[单选题]在价值链模型中，支持辅助活动不包括（　　）。

[多选题]作为集体劳动争议处理协调处理机构，劳动行政部门在协调处理争议时要（）。

[单选题]男性，39岁。临床诊断复合性溃疡，行毕Ⅱ式胃大部切除术（空肠近端对大弯、远端对小弯）后3个月，每进食5～30分钟即出现上腹饱胀不适，恶心、呕吐，腹泻、偶有腹绞痛，同时伴心慌、出汗、眩晕、面色苍白、乏力等症状。引起上述症状最可能的原因是（）。

[问答题]简述领事裁判权侧度的主要内容。

[单选题]2008年中国迎来了改革开放三十周年，三十年改革开放成功与否的判断标准为（）

[填空题]浓香型的白酒主要有（）、（）等。

[多选题]合同变更的原因有以下哪些（）。

[多选题]合同变更的原因有以下哪些（）。

[多选题]合同变更的原因包括（）。

[单选题]保险合同内容的变更主要是由（）原因引起的。

[单选题]保险合同内容的变更主要是由（）原因引起的。

[多选题]因合同变更等原因导致企业提前购汇后未能对外支付的进口货款，该笔进口货款的处置可以（）。

[多选题]根据劳动合同变更的原因，可以划分为（）。

[多选题]合同的变更，从原因与程序上看其分类有（）。

[多选题]合同变更的原因可以是下列哪几个？（）

[多选题]合同的变更，从原因与程序上看其分类有（）。