搜题请搜索小程序“爱下问搜题”
问题 单项选择题 案例分析题

“某等值线图”，图中数值a＜b＜c，据此回答下题。

若该图为我国某地等压线图，则（）

A.①处吹偏南风

B.②处易出现锋面

C.③处降水较多

D.该地区天气晴朗

答案

参考答案：B

解析：

若改图为我国某地等压线图，且a＜b＜c，可知图示天气系统中心为低压，②处于为低压槽，容易出现锋面，且为冷锋；在低压控制下，盛行上升气流，多阴雨天气；因位于我国，①处吹偏北风；③位于冷锋锋前降水较少。

考点：该题考查等值线的判读。

单项选择题

There is no question that the academic enterprise has become increasingly global, particularly in the sciences. Nearly three million students now study outside their home countriesa 57% increase in the last decade. Foreign students now dominate many U.S. doctoral programs, accounting for 64% of Ph. D. s in computer science, for example.
Faculty members are on the move, too. Half of the world’s top physicists no longer work in their native countries. And major institutions such as New York University are creating branch campuses in the Middle East and Asia. There are now 162 satellite campuses worldwide, an increase of 43% in just the past three years.
At the same time, growing numbers of traditional source countries for students from South Korea to Saudi Arabia (沙特阿拉伯), are trying to improve both the quantity and quality of their own degrees, engaging in a fierceand expensiverace to recruit students and create world-class research universities of their own.
Such competition has led to considerable hand-wringing in the West. During a 2008 campaign stop, for instance, then—candidate Barack Obama expressed alarm about the threat that such academic competition poses to U. S. competitiveness. Such concerns are not limited to the United States. In some countries, worries about educational competition and brain drains have led to academic protectionism. India, for instance, places legal and bureaucratic barriers in front of Western universities that want to set up satellite campuses to enroll local students.
Perhaps some of the anxiety over the new global academic enterprise is understandable, particularly in a period of massive economic uncertainty. But educational protectionism is as big a mistake as trade protectionism is. The globalization of higher education should be embraced, not fearedincluding in the United States. There is every reason to believe that the worldwide competition for human talent, the race to produce innovative research, the push to extend university campuses to multiple countries, and the rush to train talented graduates who can strengthen increasingly knowledge-based economies will be good for the United States, as well.

A feature of the globalization of the academic enterprise is that more students ______.

A. study in foreign countries
B. major in computer science
C. take joint doctoral programs
D. return home after studying abroad
查看答案
单项选择题

一般可将功率分频器加装在（）

A、调音台主输入到分频器输出之间

B、调音台输出到分频器输入之间

C、扬声器和功率放大器输入之间

D、调音台输入到功率放大器输入之间
查看答案