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。