46. 下列辛烷值高低的排列順序,何者正確?(A)i-Paraffin>n-Paraffin>i-Olefin(B)n-Paraffin>iParaffin>i-Olefin(C)i-Paraffin>i-Olefin>n-Paraffin(D)i-Olefin>i-Paraffin>n-Paraffin。