诊断纤溶优势型DIC的前提条件是

1. TAT ≥20 μg/L and PIC ≥10 μg/L
2. TAT ≥10 μg/L and PIC ≥10 μg/L
3. TAT ≥10 μg/L and PIC ≥20 μg/L
4. TAT ≥20 μg/L and PIC ≥20 μg/L