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【单选题】
若企业无负债和优先股,则财务杠杆利益将( )。A.
存在
B.
不存在
C.
增加
D.
减少
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举一反三
【简答题】若集合A={1，x 2} ，集合B={1，3，x}，且A∪B={1，3，x}，则x=______．
【简答题】若集合A={x|x 2 -1＜0}，集合B={x|x＞0}，则A∩B=______．
【单选题】Buying the right products, at the right price, from the right source, at the right specifications, in the right quantity, for delivery at the right time to the right internal customer is associated wi...
A.
managing the supply base
B.
managing the purchasing process effectively and efficiently
C.
supporting operational requirements
D.
supporting organizational goals and objectives
【简答题】In China, traffic keeps to the right. Cars, trucks, buses bikes must all keep to the right side of the . In most other countries, traffic to the left. How can you the roads safer? you cross the road, ...
【简答题】若集合A={x|log a （x 2 -x-2）＞2，a＞0且a≠1}． （1）若a=2，求集合A； （2）若 9 4 ∈A ，求a的取值范围．
【简答题】若全集U=R，集合A={x|x＞1}，B={x|x＞2}，则集合A∩（? U B）=______．
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