What is the text mainly about…——2009 高考英语第 57 题答案解析

【解答】
What is the text mainly about?
A. The disagreements among DNA researchers.
B. The unfair treatment of Franklin.
C. The process of discovering DNA.
D The race between two teams of scientists.
【解析】主旨大意题。根据第一段最后两句和最后一段第二句，选B。【答案】Ｂ。