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What accounts for the high drop-out rates for onl

By almost any measure , there is a boom in Internet-based instruction . In just a few years , 34 percent of American universities have begun offering some form of distance learning (DL), and among the larger schools , it’s closer to 90 percent . If you doubt the popularity of the trend, you probably haven’t. It enrolls 90,000 student, a statistic used to support its claim to be the largest private university in the country.

While the kinds of instruction offered in these programs will differ, DL usually signifies a course in which the instructions post syllabi(课程大纲), reading assignments , and schedules on Websites , and students send in their assignments by e-mail . Generally speaking, face-to-face communication with an instructor is minimized or eliminated altogether.

What accounts for the high drop-out rates for online students?

A) There is no strict control over the academic standards of the courses.

B) The evaluation system used by online universities is inherently weak.

C) There is no mechanism to ensure that they make the required effort.

D) Lack of classroom interaction reduces the effectiveness of instruction.

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更多“What accounts for the high drop-out rates for onl”相关的问题

第1题

‎案例“基于MEASUR和RUP的信息系统业务建模方法研究”达到了“制定研究计划”的以下目的()。‏
‎案例“基于MEASUR和RUP的信息系统业务建模方法研究”达到了“制定研究计划”的以下目的()。‏

A.提供成功完成的管理指南

B.估计活动时间

C.明确研究目标

D.确定需要的活动及其关系

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第2题

What is the most striking feature of the Universit

By almost any measure , there is a boom in Internet-based instruction . In just a few years , 34 percent of American universities have begun offering some form of distance learning (DL), and among the larger schools , it’s closer to 90 percent . If you doubt the popularity of the trend, you probably haven’t. It enrolls 90,000 student, a statistic used to support its claim to be the largest private university in the country.

. What is the most striking feature of the University of Phoenix?

A) All its courses are offered online.

B) Its online courses are of the best quality.

C) It boasts the largest number of students on campus

D) Anyone taking its online courses is sure to get a degree.

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第3题

‌案例“基于MEASUR和RUP的信息系统业务建模方法研究”达到了文献综述的以下目的()。‍
‌案例“基于MEASUR和RUP的信息系统业务建模方法研究”达到了文献综述的以下目的()。‍

A.了解领域当前研究状况

B.精化研究目标和问题

C.凸显研究可能性

D.识别研究方法和技术

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第4题

Many students take Internet -based courses mainly

By almost any measure , there is a boom in Internet-based instruction . In just a few years , 34 percent of American universities have begun offering some form of distance learning (DL), and among the larger schools , it’s closer to 90 percent . If you doubt the popularity of the trend, you probably haven’t. It enrolls 90,000 student, a statistic used to support its claim to be the largest private university in the country.

While the kinds of instruction offered in these programs will differ, DL usually signifies a course in which the instructions post syllabi(课程大纲), reading assignments , and schedules on Websites , and students send in their assignments by e-mail . Generally speaking, face-to-face communication with an instructor is minimized or eliminated altogether.

Many students take Internet -based courses mainly because they can_____

A) Earn their academic degrees with much less effort

B) Save a great deal on traveling and boarding expenses

C) Select courses from various colleges and universities

D) Work on the required courses whenever and wherever

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第5题

According to the passage , distance learning is ba

By almost any measure , there is a boom in Internet-based instruction . In just a few years , 34 percent of American universities have begun offering some form of distance learning (DL), and among the larger schools , it’s closer to 90 percent . If you doubt the popularity of the trend, you probably haven’t. It enrolls 90,000 student, a statistic used to support its claim to be the largest private university in the country.

While the kinds of instruction offered in these programs will differ, DL usually signifies a course in which the instructions post syllabi(课程大纲), reading assignments , and schedules on Websites , and students send in their assignments by e-mail . Generally speaking, face-to-face communication with an instructor is minimized or eliminated altogether.

According to the passage , distance learning is basically characterized by_____

A) A considerable flexibility in its academic requirements

B) The great diversity of students’ academic backgrounds

C) A minimum or total absence of face-to-face instruction

D) t the casual relationship between students and professors

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第6题

从供选择的答案中选出应填入下面一段英文中______内的正确答案。 Java was introduced by Sun Microsystems

从供选择的答案中选出应填入下面一段英文中______内的正确答案。

Java was introduced by Sun Microsystems in 1995 and instantly(1)created a new sense of the interactive possibilities ofthe Web. Both ofthe major Web browsers include a Java(2)virtual machine. Almost all major operating system developers (IBM, Microsoft, and others) have added Java(3)compilers as part oftheir product offerings.

The Java virtual machine includes an optional just-in-time compiler that(4)dynamically compiles bytecode into executable code as an alternative to(5)interpreting one bytecode instruction at a time. In many(6)cases, the dynamic JIT compilation is faster than the virtual machine interpretation.

JavaScript should not be(7)confused with Java. JavaScript, which originated at Netscape, is interpreted at a higher level, is easier to learn than Java, but(8)lacks some of the portability of Java and the speed of bytecode. Because Java applets will run on almost any operating system without(8)requiring recompilation and because Java has no operating system-unique extensions or variations, Java is generally regarded as the most strategic(10)language in which to develop applications for the Web.

供选择的答案:

1.confused 2.compilers 3.dynamically 4.requiring 5.cases

6.interpreting 7.language 8.virtual 9.created 10.lacks

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第7题

From Monday to Friday most people are busy working or studying, but in the evenings an
d weekends they are free and __1__ themselves. Some watch television or go to the movies, others take part in sports. This is decided by their own interests.

There are many different ways to spend our free time. Almost everyone has some kind of __2__. It may be something from colleting stamps to making model planes. Some hobbies are very expensive, but others don't cost anything at all. Some collections are worth a lot of money, others are valuable only to their owners.

I know a man who has a coin collection worth several __3__ dollars. A short time ago he bought a rare fifty-cent piece which cost him $50! He was very happy about this collection and thought the price was all right. On the other hand, my youngest brother collects match boxes. He has almost 600 kinds of them, but I wonder __4__ they are worth any money. However, to my brother they are quite valuable. __5__ makes him happier than to find a new match box for his collection.

That's what a hobby means, I think. It is something we like to do in our free time just for the fun of it. The value in dollars is not important, but the pleasure it gives us is.

1)、A.thousand

B.of

C.Nothing

D.enjoy

E.hobby

2)、A.thousand

B.of

C.Nothing

D.enjoy

E.hobby

3)、A.thousand

B.of

C.Nothing

D.enjoy

E.hobby

4)、A.thousand

B.of

C.Nothing

D.enjoy

E.hobby

5)、A.thousand

B.of

C.Nothing

D.enjoy

E.hobby

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第8题

(1) Life can be tough for immigrants in America. A...

(1) Life can be tough for immigrants in America. As a Romanian bank clerk in Atlanta puts it, to find a good job “you have to be like a wolf in the forest – able to smell out the best meat.” And if you can’t find work, don’t expect the taxpayer to bail you out. Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state. A law passed in 1996 explicitly bars most immigrants, even those with legal status, from receiving almost any federal benefits. (2) That is one reason why America absorbs immigrants better than any other rich countries, according to a new study by the University of California. The researchers sought to measure the effect of immigration on the native-born in 20 rich countries, taking into account differences in skills between immigrants and natives, imperfect labor markets and the size of the welfare state in each country. (3) Their results offer ammunition for fans of more open borders. In 19 out of 20 countries, the authors calculated that shutting the doors entirely to foreign workers would make the native-born worse off. Never mind what it would do to the immigrants themselves, who benefit far more than anyone else from being allowed to cross borders to find work. (4) The study also suggests that most countries could handle more immigration than they currently allow. In America, a one-percentage point increase in the proportion of immigrants in the population made the native-born 0.05% better off. The opposite was true in some countries with generous or ill-designed welfare states, however. A one-point rise in immigration made the native-born slightly worse off in Austria, Belgium, Germany, Luxembourg, the Netherlands, Sweden and Switzerland. In Belgium, immigrants who lose jobs can receive almost two-thirds of their most recent wage in state benefits, which must make the hunt for a new job less urgent. (5) None of these effects was large, but the study undermines the claim that immigrants steal jobs from native or drag down their wages. Many immigrants take jobs that Americans do not want, the study finds. This “smooths” the labor market and ultimately creates more jobs for locals. Native-owned grocery stores do better business because there are immigrants to pick the fruit they sell. Indian computer scientists help American software firms expand. A previous study found that because immigrants typically earn less than locals with similar skills, they boost corporate profits, prompting companies to grow and hire more locals. 1. Increase in immigration in Austria fails to improve locals’ life mainly because of ________.

A、low wages for locals

B、imperfect labor markets

C、the design of the welfare system

D、inadequate skills of immigrants

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第9题

Since World War II, there has been a clearly discernible trend, especially among the growi
ng group of college students, toward early marriage. Many youths begin dating in the first stages of adolescence, "go steady" through high school, and marry before their formal education has been completed. In some quarters, there is much shaking of graying locks and clucking of middle-aged tongues over the ways of "wayward youth". However, emotional maturity is no respecter of birthdays; it does not arrive automatically at twenty-one or twenty five. Some achieve it surprisingly early, while others never do, even in three-score years and ten.

Many students are marrying as an escape, not only from an unsatisfying home life, but also from their own personal problems of isolation and loneliness. And it can almost be put down as a dictum that any marriage entered into as an escape cannot prove entirely successful. The sad fact is that marriage seldom solves one' s problems; more often, it merely accentuates them. Furthermore, it is doubtful whether the home as an institution is capable of carrying all that the young are seeking to put into it; one might say in theological terms, that they are forsaking one idol only to worship another. Young people correctly understand that their parents are wrong in believing that "success" is the ultimate good, but they erroneously believe that they themselves have found the true center of life' s meaning. Their expectations of marriage are essentially utopian and therefore incapable of fulfillment. They want too much, and tragic disillusionment is often bound to follow.

Shall we, then join, the chorus of "Miseries" over early marriages? One cannot generalize: all early marriages are not bad any more that all later ones are good. Satisfactory marriages are determined not by chronology, but by the emotional maturity of the partners. Therefore, each case must be judged on its own merits. If the early marriage is not an escape, if it is entered into with relatively few illusions or false expectations, and if it is economically feasible, why not? Good marriages can be made from sixteen to sixty, and so can bad ones.

According to this passage, the trend toward early marriages______.

A.can be clearly seen

B.is the result of the Great Depression of the 30' s

C.can' t be easily determined

D.is an outgrowth of the moral looseness brought about by World War II

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