1. Listening Comprehension
1~3) Listen to the following and answer the question.
Pre-history
Prior to the release of bitcoin there were a number of digital cash technologies starting with the issuer based e-cash protocols of David Chaum and Stefan Brands. Adam Back developed hashcash, a proof- of-work scheme for spam control. The first proposals for distributed digital scarcity based cryp
1. part 1 짧은 대화 유형
다음의 짧은 대화를 듣고 연결될 수 있는 가장 적절한 응답을 고르시오.
W: Do you think you could get our Christmas mailers out this week?
M:
(a) I can't wait to receive it either.
(b) By Monday I promise.
(c) I'm going to check the Christmas message tomorrow.
(d) This year, we'll mail out al
It is difficult to really experience or "feel" the size of the United States, even when you know the actual number of miles from coast to coast.
당신이 해안에서 해안까지의 실제 거리를 안다고 할지라도 미국의 크기를 경험하거나 느끼는 것은 정말 어렵다.
To get the full impact you should realize, for example, that it takes forty-eight hours (two entire
◆ Modern Society and Web 2.0
Web 1.0 era as the word of "sea of information", we are exposed to a lot of information. Regardless of distance and time, we can easily send information as well as our own private information. Also, the amount of data, in 1989, the European Particle Physics in Switzerland, developed hypertext and MOSAIC invented first web browser in 1993. Those changes helped to
■ Dividing the four skills up
1. into medium, with listening and speaking
occurring in the spoken medium, reading
and writing in the written medium.
2. into the receptive skills of listening and
reading, and the productive skills of
speaking and writing.
In some approaches to language teaching, the four skills are treated separately. There are obvious adv