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【简答题】
在一绝热保温瓶中,将 100 g 、 0 °C 的 100 g 、 50 °C 水混合在一起,试问最后的平均温度应为多少?其中多少克? ( 冰的熔化热为 333.46 J∙g - 1 ;水的平均比热为 4.184 J∙K - 1 ∙g - 1 )
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举一反三
【单选题】企业利用原有的市场,通过从不同的角度开发新产品,达到扩大企业业务领域,稳固占有市场的目的,这种增长策略是( )
A.
同心多样化
B.
水平多元化
C.
集团多样化
D.
水平一体化
【单选题】企业利用原有的市场,通过从不同的角度开发新产品,达到扩大企业的业务领域,稳固占有市场的目的,这种增长策略是( )。
A.
同心多样化
B.
水平多角化
C.
集团多样化
D.
水平一体化
【单选题】企业利用原有的市场,通过从不同的角度开发新产品,达到扩大企业业务领域,稳固占有市场的目的,这种增长策略是( )
A.
同心多样化
B.
水平多元化
C.
集团多样化
D.
水平一体化
【单选题】Consider the following situation. Mohammed is a third year undergraduate student studying epidemiology. His professor is highly regarded in the field and Mohammed is very excited to study under him. H...
A.
Bring this to his professor’s attention as soon as possible.
B.
Go to the head of the school and tell her that his professor has been falsifying his results.
C.
Do nothing. Mohammed obviously isn’t doing the calculations properly as his professor is much more intelligent and knows much more about the subject than he does.
【单选题】Consider the following situation. Mohammed is a third year undergraduate student studying epidemiology. His professor is highly regarded in the field and Mohammed is very excited to study under him. H...
A.
Go to the head of the school and tell her that his professor is has been falsifying his results.
B.
Do nothing. Maybe that is just how science is done in epidemiology.
C.
Go to the head of the school and ask for their opinion on the situation.
D.
Tell his friend who works at the university’s newspaper all about it, so they can write up an expose on his professor.
【单选题】An Office Upgrade project has an upfront cost of $5000 and net expenses of $1000, $2000 and $1000 at the end of the next three years. It has an estimated benefit of $12,000at the end of the third year...
A.
$653
B.
$702
C.
$866
D.
$812
【单选题】企业利用原有的市场，通过从不同的角度开发新产品，达到扩大企业业务领域，稳固占有市场的目的，这种增长策略是（ ）
A.
同心多样化
B.
水平多角化
C.
集团多样化
D.
水平一体化
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