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【简答题】
关系型数据库管理系统集数据查询语言、数据操纵语言、数据定义语言和数据控制语言为一体的是( )。
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举一反三
【多选题】the five symbols of American culture
A.
the Statue of Liberty
B.
American Gothic
C.
Buffalo Nickel
D.
Uncle Sam
E.
Barbie DollsDolls
F.
MacDonalds
【单选题】当测角精度要求较高时,应变换水平度盘不同位置,观测n个测回 取平均值,变换水平度盘位置的计算公式是()。
A.
90°/n
B.
180°/n
C.
270°/n
D.
360°/n
【多选题】Which one(s) are included in the most important national symbols of the USA?
A.
Coat of Arms of the United States
B.
The Bald Eagle
C.
The Flag of the United States
D.
The Maple Tree
E.
The Beaver
F.
The Maple Leaf
【简答题】A message is combined by the symbols 0, 1, 2 and 3. Assume that P{0}=1/3, P{1}=3/8, P{2}=1/8 and P{3}=1/6, it is obviously obtained that the self-information of the symbols 0 is ______________, the ...
【单选题】It consists of patterns, explicit and implicit, of and for behavior acquired and transmitted by symbols, constituting the distinctive achievement of human groups, including their embodiments in artifa...
A.
value
B.
culture
C.
steretype
D.
perception
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