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【单选题】
whAt DistinguishEs thE EnD-pErmiAn mAss ExtinCtion From othEr similAr DEvAstAtions
A.ChAngE oF oCEAn ChEmistry.
B.survivAl oF mioCiDAris.
C.CAusEs.
D.ECologiCAl rEorgAnizAtion.
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77%
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