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【判断题】
The revenue premium approach to estimate brand equity involves determining the financial value of the company through stock valuation with an estimate of the portion of the value allocated to brand equity and not physical assets.A.
正确
B.
错误
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【单选题】有一原电池: Pt │ Fe 3+ (1 mol/L) , Fe 2+ (1 mol/L) ‖ Ce 4+ (1 mol/L) , Ce 3+ (1 mol/L) │ Pt 则该电池的电池反应是( )
A.
Ce 3+ + Fe 3+ = Ce 4+ + Fe 2+
B.
Ce 4+ + Fe 2+ = Ce 3+ + Fe 3+
C.
Ce 3+ + Fe 2+ = Ce 4+ + Fe 3+
D.
Ce 4+ + Fe 3+ = Ce 3+ + Fe 2+
【单选题】有一原电池 : - ) Pt│Fe 3+ (1mol·L -1 ) , Fe 2 + (1 mol·L -1 ) ‖ Ce 4 + (1 mol·L -1 ) , Ce 3+ (1 . mol·L -1 ) │Pt ( + ) , 则该电池的电池反应是 ( )
A.
Ce 3 ＋ + Fe 3 ＋ = == Ce 4 ＋ + Fe 2 ＋
B.
Ce 4 ＋ + Fe 2 ＋ = == Ce 3 ＋ + Fe 3 ＋
C.
Ce 3 ＋ + Fe 2 ＋ = == Ce 4 ＋ + Fe
D.
Ce 4 ＋ + Fe 3 ＋ == = Ce 3 ＋ + Fe 2 ＋
【简答题】观察洋葱鳞茎内表皮细胞所用的染液通常是醋酸洋红。( )
【简答题】色谱按分离机理可分为几大类?并写出每类的分离机理。
【单选题】有一原电池:Pt│Fe3+(1mol.dm-3 )，Fe2+(1 mol.dm-3 )‖Ce4+(1mol.dm-3)，Ce3+(1mol.dm-3) ½ Pt则该电池的电池反应是
A.
Ce 3+ + Fe 3+ = Ce 4+ + Fe 2+
B.
Ce 4+ + Fe 2+ = Ce 3+ + Fe 3+
C.
Ce 3+ + Fe 2+ = Ce 4+ + Fe
D.
Ce 4+ + Fe 3+ = Ce 3+ + Fe 2+
【简答题】The devices function together as the coupler which helps to improve the vertical stability of the train .In most cases ,buffer devices are included in couplers to mitigate the train jerk .They are als...
【单选题】What is the main function of the transitional devices in writing?
A.
They serve as the bridges between parts of your paper.
B.
They make your writing simple.
C.
They emphasize your main points.
D.
They help you to express your ideas in an easy way.
【单选题】有一原电池: Pt│Fe 2+ (1 mol·L -1 ) , Fe 3+ (1 mol·L -1 ) ‖ Ce 4+ (1 mol·L -1 ) , Ce 3+ (1 mol·L -1 )│Pt 则该电池的电池反应是
A.
Ce 3+ + Fe 3+ = Ce 4+ + Fe 2+
B.
Ce 4+ + Fe 2+ = Ce 3+ + Fe 3+
C.
Ce 3+ + Fe 2+ = Ce 4+ + Fe
D.
Ce 4+ + Fe 3+ = Ce 3+ + Fe 2+
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