题目内容
（请给出正确答案）
A.1949
B.1972
C.1977
D.2001
参考答案
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
网友提供的答案
更多“在（）年，美国国家标准局把IBM的Tuchman-Meyer方案确定数据加密标准，即DES。”相关的问题
A．IEEE指定丁基于UNIX的“易移植操作系统环境”即POSIX标准
B．UNIX国际讥与开放系境基金会OSF成了了“公共开放软件环境”组织COSE以实现UNIX系统的统一
C．Novell公司从AT&T公司购得了UNIX商标权，并一直保持
D．IBM的AIX与SCO的UnixWare已经相互融合到了二进制级的互操作性
A、book
B、budget
C、boy
D、blind
A. 指数收益率增加3%，该股票收益率增加4.5%
B. 指数收益率减少2%，该股票收益率增加3%
C. 指数收益率增加3%，该股票收益率增加6%
D. 指数收益率减少2%，该股票收益率减少3%
B.IBMServerProven
C.IBMStandaloneSolutionsConfigurationTool-(SSCT)
D.IBMConfiguration&OptionsGuide-(COG)
The method for making beer has changed over time. Hops (啤酒花)，for example, which give many a modem beer its bitter flavor, are a (26)_______ recent addition to the beverage. This was first mentioned in reference to brewing in the ninth century. Now, researchers have found a (27)_______ingredient in residue (残留物)from 5,000-year-old beer brewing equipment. While digging two pits at a site in the central plains of China, scientists discovered fragments from pots and vessels. The different shapes of the containers (28)_______ they were used to brew, filter, and store beer. They may be ancient “beer-making tools,” and the earliest (29_______ evidence of beer brewing in China, the researchers reported in the Proceedings of the National Academy of Sciences. To (30)_______ that theory, the team examined the yellowish, dried (31)_______ inside the vessels. The majority of the grains, about 80%, were from cereal crops like barley (大麦),and about 10% were bits of roots, (32)_______lily,which would have made the beer sweeter, the scientists say. Barley was an unexpected find: the crop was domesticated in Western Eurasia and didn&39;t become a (33)_______food in central China until about 2,000 years ago, according to the researchers. Based on that timing, they indicate barley may have (34)_______ in the region not as food, but as (35)_______material for beer brewing.
A) Arrived
B) consuming
C) direct
D) exclusively
E) including
F) inform
G) raw
H) reached
I) relatively
J) remains
K)resources
L) staple
M) suggest
N) surprising
O) test
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