32 有一雙股DNA其Tm(melting temperature)值為93.9℃,試求其密度為下列何者?[(Tm=69.3°C+0.41°C×%(G+C): P=1.66+0.00098×%(G+C)](A)1.7188(B)1.6388(C)1.6688(D)1.6988