Biology · Human Blood Grouping
ABO प्रणाली के तहत, मानव रक्त को ______ मुख्य प्रकारों में वर्गीकृत किया गया है।
- 1दो
- 2तीन
- 3चार✓
- 4छह
सही उत्तर देखें
चार
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