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【简答题】
什么是企业决策?包含哪些特性?
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皮皮学刷刷变学霸
举一反三
【单选题】For real numbers a and b, when is the equation ∣a+b∣=∣a–b∣true?
A.
Always
B.
Only when a=b
C.
Only when a=0 and b=0
D.
Only when a=0 or b=0
E.
Never
【单选题】Real competition can happen only when ______.
A.
academic standard is improved
B.
there are comparable schools with different educational qualities
C.
students have different interests
D.
schools of all areas have sufficient budget for their development
【单选题】Michael put me in a ______ position when we talked about the matter that day.
A.
real difficulty
B.
really difficulty
C.
really difficult
D.
real and difficult
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