PURINE AND PYRIMIDINE NUCLEOTIDES INCORPORATED INTO MATERNAL AND FETAL RIBO NUCLEIC ACID DERIVE ALMOST EXCLUSIVELY FROM SYNTHESIS DE NOVO IN THE PREGNANT MOUSE是什么意思_PURINE AND PYRIMIDINE NUCLEOTIDES INCORPORATED INTO MATERNAL AND FETAL RIBO NUCLEIC ACID DERIVE ALMOST EXCLUSIVELY FROM SYNTHESIS DE NOVO IN THE PREGNANT MOUSE在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句