According to the American federal government, residents of Hawaii have the longest life ______ :77.2 years.
A)rank B)span C)scale D)scope
It __________ according to where you live, and this is a very rough estimate
[A] shifts
[B] converts
[C] modifies
[D] varies
We are quite sure that we can ______our present difficulties and finish the task according to schedule.
A)get across B)get over C)get away D)get off
A.the largest
B.the second largest
C.the third largest
D.the fourth largest
While elderly people 47.to sleep for fewer hours than they did when they were younger, this has a 48.effect on their brain's performance and they would benefit from getting more, according to research.
According to Fozard's argument people can make their brains work more efficiently by _____.
(A) constantly doing memory work (C) going through specific training
(B) taking part in various mental activities (D) making frequent adjustments
According to the CDD's Chester, nobody can take Microsoft seriously when __
[A] it talks about competitive behavior
[B] it comes into a room
[C] it doesn't threat to privacy
[D] it doesn't have any opponents
【题目描述】
第3题:According to this passage, gestures are__________ A. spoken words B. a non-language element
C. pictures in a language D. written language
【我提交的答案】: C |
【参考答案与解析】: 正确答案:B |
【我的疑问】(如下,请求专家帮助解答)
为什么正确的答案是B而不是C?
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
(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