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【简答题】
如果A，B都是n级正定矩阵，则A+B也是正定矩阵．
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【单选题】Phil enters into a contract to hire Bob's Building Business to build a warehouse for Phil. The contract specifies that the warehouse should be built with HighQual Bricks. When construction starts, Hig...
A.
discharge Phil from the contract.
B.
has no effect on the contract.
C.
increase Bob's Building Business's duties under the contract.
D.
suspends Bob's Building Business's duty to perform.
【简答题】In relation to the Judicial Interpretation on the Application of the Contract Law by the Supreme People’s Court: (a) state the procedural way to deal with the situation when an obligee has assigned hi...
【简答题】易卜生的社会问题剧包括？
【简答题】易卜生的社会问题剧包括：（）、（）、（）、（）等。
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