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【单选题】
当企业的生产经营处于盈亏临界状态时( )A.
固定成本同贡献边际相等
B.
总成本同贡献边际相等
C.
变动成本同贡献边际相等
D.
安全边际同贡献边际相等
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举一反三
【单选题】What does 'it' refer to in line 42?
A.
facing a different challenge
B.
taking a familiar car journey
C.
acting in the same play every night
D.
working with fellow actors
【单选题】Having been engaged in the line of electric fans for more than 30 years, we are quite familiar with the market here and can supply any quantity _______ the exact specifications of your order.
A.
for
B.
in
C.
at
D.
to
【单选题】It seems that smaller ants perform. more of the _______.
A.
construction tasks
B.
domestic tasks
C.
defensive work
D.
heavy work
【简答题】The reader is undoubtedly familiar with the geometric representation of real numbers by means of points on a straight line.
【单选题】The familiar line “All are brothers within the four seas” is from __________.
A.
the Confucian Analects
B.
the True Story of Ah Q
C.
the Doctrine of Morality
D.
the Book of Songs
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