【单选题】【消耗次数：1】
机会成本是指（）。
①
在选择一个行动方案时，因放弃了另一个最佳替代方案而做出的牺牲。
②
有可能发生的成本。
③
在选择一个行动方案时，被放弃的另一个方案的成本。
④
从销售收入中扣除正常利润之后得出的成本。
参考答案：
复制
纠错
相关题目
【单选题】
当一台主机从一个网络移到另一个网络时，以下说法正确的是（）
①
必须改变它的IP地址和MAC地址
②
必须改变它的IP地址，但不需改动MAC地址
③
必须改变它的MAC地址，但不需改动IP地址
④
MAC地址、IP地址都不需改动
随机题目
【单选题】
We hadnt met for 20 years, but I recognized her ______I saw her.
①
for the moment
②
the moment when
③
at the moment when
④
the moment
【单选题】
______ the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.
①
Even if
②
As far as
③
If only
④
So long as
【单选题】
Therewasateapotfashionedlikeachinaduck,outof______openmouththeteawassupposedtocome.
①
which
②
its
③
that
④
whose
【单选题】
______receivingfinancialsupportfromfamily,communityorthegovernmentisallowed,itisneveradmired.
①
As
②
Once
③
Although
④
Lest
【单选题】
_______ difficulties we may come across, well help one another to overcome them.
①
Wherever
②
Whatever
③
However
④
Whenever
【单选题】
Governmentreports,examinationcompositions,legaldocumentsandmostbusinesslettersarethemainsituations_______formallanguageisused.
①
in which
②
on which
③
in that
④
at what
【单选题】
Althoughheknewlittleaboutthelargeamountofworkdoneinthefield,hesucceeded_______othermorewell-informedexperimentersfailed.
①
which
②
that
③
what
④
where
【单选题】
We hadnt met for 20 years, but I recognized her ______I saw her.
①
for the moment
②
the moment when
③
at the moment when
④
the moment
【单选题】
Catching crabs in the bay is profitable, but______for bass in the river is more relaxing.
①
go to fish
②
go to fishing
③
fishing
④
to do fishing
【单选题】
Thefruitdelivereddirectlyfromtheorchardwas______alsodelicious.
①
not only ripe and
②
not only ripe but
③
only ripe
④
as ripe as but