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【简答题】
Myths and legends of the supernatural shroud the early history of writing, as they do of speech. Archaeological discoveries provide charming pinholes of illumination along with frustrated problems of interpretation. An account of the 【S1】______. early history of writing has gradually emerged, but it keeps many gaps and 【S2】______. ambiguities. The matter is complicated by the fact that, in this early period, it is by no means easy to decide whether a piece of graphic expression should be counted as an artistic imagination or as a symbol of primitive writing. In 【S3】______. principle, the difference is clear: the first conveys personal and subjective 【S4】______. meanings, and does not combine into a system of recurring symbols with accepted values; by contrast, the latter is conventional and institutionalized, capable of been understood in the same way by all who are using the system. 【S5】______. When the product is a rock carving or painting of an animal, there is a little 【S6】______. doubt that its purpose is nonlinguistic (thought whether it has an aesthetic, religious, or other function is debatable). However, when the product is a series of apparent geometrical shapes or tiny characters, the distinction between art and writing becomes more obvious. The language may even reflect 【S7】______. the problem: in early Greek, and in Egyptian, the same word was used for both 'write' and 'draw'. One point, at least, is fairly clear. It now seems most likely that writing system revolved independently of each other at 【S8】______. different times in several parts of the world -- in Mesopotamia, China, Meso- America, and elsewhere. There is anything to support a theory of common 【S9】______. origin. There are of course similarities between these systems, but these are not altogether surprising, giving the limited ways of devising a system of 【S10】______. written communication. 【S1】
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【判断题】美国1946年发明的第一台电子计算机采用的十进制
A.
正确
B.
错误
【多选题】为了提高钢筋的强度,改善钢筋的塑性,普通低合金钢是在碳素钢的基础上入一定量的合金元素,可加入的合金元素有( )。
A.
B.
C.
D.
E.
【单选题】普通低合金结构钢中加入( )元素可以提高钢的抗腐蚀能力。
A.
锰、硅
B.
铌、钒
C.
铜、磷
D.
钙、铅
【多选题】普通低合金钢钢筋是在低炭钢和中炭钢中加入少量合金元素,获得强度高和综合性能号的钢种,在钢筋中常用的合金元素有()等.
A.
B.
C.
D.
【判断题】普通低合金高强度钢简称普低钢。与碳素钢相比,钢中含有少量合金元素,如锰、硅、钒、钼、钛、铝、铌、铜、硼、磷、稀土等。钢中有了一种或几种这样的元素后,具有强度高、韧性好等优点。( )
A.
正确
B.
错误
【单选题】在普通低碳钢的基础上,适当加入少量的硅、锰、钒、钛和稀土元素,便构成()钢。
A.
普通低合金钢
B.
高合金结构钢
C.
优质碳素结构钢
【判断题】元素 Tl( 铊 ) 3+ 可在水中稳定存在。( )
A.
正确
B.
错误
【单选题】以下Windows(中文版)系统中有关文件命名的叙述中,错误的是___。
A.
每个文件或文件夹必须有自己的名字
B.
同一个硬盘(或分区)中的所有文件不能同名
C.
文件或文件夹的名字长度有一定限制
D.
文件或文件夹的名字可以是中文也可以是西文和阿拉伯数字
【单选题】同步发展,建设社会主义新农村,走中国特色新型工业化道路,建设创新型国家。
A.
促进工业化、信息化、城镇化、农业现代化
B.
促进工业化、城镇化、国防现代化、农业现代化
C.
促进工业化、信息化、国防现代化、教育现代化
D.
促进工业化、信息化、城镇化、国防现代化
【多选题】《党章》总纲规定:促进()同步发展,建设社会主义新农村,走中国特色新型工业化道路,建设创新型国家。
A.
工业化
B.
信息化
C.
城镇化
D.
农业现代化
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