과기역 핵심 기출지
- 최초 등록일
- 2023.01.30
- 최종 저작일
- 2023.01
- 12페이지/ 한컴오피스
- 가격 5,000원
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본문내용
I. 1. The ( ) Age is a broad prehistoric period during which stone was widely used to make implements with a sharp edge, a pint, or a percussion surface.
2. Earliest known metal alloy ( ), is an alloy of copper containing approximately 10% tin.
3. The ( ) in Anatolia introduce methods to produce relatively large quantities of smelted iron around 1,400 BC.
4. Gold (Au), ( ) , and copper, are known as the coinage metals and have been used ever since currency has been employed.
5. ( ) is an alloy of iron with 늠ll amounts of carbon typically less than 2% by weight.
6. The ( ) of Mesopotamia were constructed with fired bricks and bitumen mortar.
7. ( ), which is the second most abundant element of the earth's crust, is the major ingredient of glass, which has been used for over 5,000years.
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