Questions 14 to 16 are based on the following talk. You now have 15 seconds to read Questions 14 to 16.
It’s always fun to write about research that you can actually try out for yourself.
Try this: Take a photo and upload it to Facebook, then after a day or so, note what the URL link to the picture is and then delete it. Come back a month later and see if the link works. Chances are: It will.
Facebook isn’t alone here. Researchers at Cambridge University have found that nearly half of the social networking sites don’t immediately delete pictures when a user requests they be removed. In general, photo-centric websites like Flickr were found to be better at quickly removing deleted photos upon request.
Why do "deleted" photos stick around so long The problem relates to the way data is stored on large websites: While your personal computer only keeps one copy of a file, large-scale services like Facebook rely on what are ca
A. Whether we can develop social ties on the Internet.
B. Whether a deleted photo is immediately removed from the web.
C. Whether our blogs can be renewed daily.
D. Whether we can set up our own websites.
Questions are based on the following talk about computer science education in Switzerland.
Here in Switzerland you get a bachelor’s degree in two years and three years later a master’s. Usually, people stop at a master’s, but if you want to go on for a Ph.D., that takes another four years. Most people stay in one subject, so you need to decide the direction you want to take after high school.
There are required core courses for bachelor’s and master’s programs. My university is a technical university, so the core courses are the same for everybody — computer science, mathematics, physics, mechanics and so on.
For students specializing in computer science, there is another set of required courses that we call basic computer science. Completing these takes two years. At that point, you can choose a specialty in one of the four areas — system software, information technology, hardware or theoretical computer science.<
A. All the students.
B. Students doing a Bachelor.
C. Students doing a Master.
D. Students doing a Ph.D.
我来回答:
