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【多选题】
下列债务人可以中止履行合同义务的情况是( )。A.
应当先履行债务的当事人有确切证据证明对方经营状况严重恶化的
B.
买卖合同的买受人有确切证据证明第三人可能就标的物主张权利的
C.
债权人变更住所未通知债务人使履行债务发生困难的
D.
债权人死亡未确定继承人使债务难以履行的
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