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【简答题】
设 A={3,6,9},A上的二元运算*定义为:a*b=min{a,b},则在 代数结构 中, 单位( ),零( )
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【判断题】艺术与宗教不同于科学,更多追求逻辑而非完美。()。
A.
正确
B.
错误
【单选题】机床液压系统系统压力损耗大,会致使( )。
A.
机械能大量转化为液乐能
B.
机械能大量转化为热能
C.
压力能大量转化为热能
D.
热能大量转化为液压能
【单选题】______ are changes on charts due to changes in hydrography,topography,construction,removal or addition of dangers to navigation et
A.
revised edition
B.
new edition
C.
small corrections
D.
source data
【判断题】机床液压系统系统压力损耗大,会致使压力能大量转化为热能。
A.
正确
B.
错误
【多选题】Changes in company strategy often require changes instructure,organizational structure
A.
Structure dictates how goals and objectives will be established.
B.
Changes in company strategy must require changes in structure.
C.
Changes in structure MUST require changes in company strategy.
D.
Structure dictates how resources will be allocated.
E.
Structure should be designed to facilitate the strategic pursuit of a firm.
【简答题】 (1)在下图中作出发光物 所成的像 (2)当发光物AB向着焦点F处移动时,它所成的像大小应会变_______。 (3) 计算上图的像距是_____ cm(用小数表示) 。
【简答题】Changes in a bond’s cash flows associated with yield changes would be reflected in the bond’s: A. modified duration B. Macaulay duration C. effective duration
【单选题】Changes in a language are changes in the grammar of the speaker of the language. This means that phonemes, ____words and grammatical rules may be borrowed, added, lost or altered.
A.
phrases
B.
sentences
C.
morphemes
D.
utterances
【单选题】比较荧光光谱的波长和磷光光谱的波长( )
A.
相同
B.
不同
C.
前者稍长
D.
前者稍短
【单选题】机床液压系统系统压力损耗大,会致使( )
A.
机械能大量转化为液压能
B.
机械能大量转化为热能
C.
压力能大量转化为热能
D.
热能大量转化为液压能
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