This text is mainly about______. A．the status of minorities in scientific research B．efforts to help underrepresented minority students pursue careers in science C．legal obstacles to minority students completing graduate studies in science D．government efforts to increase minority representation in science
A. A．the B.efforts C.legal D.government
【参考答案】
B 属主旨思想题。文章第一段第一句就点明了本文的主题：多年来，美国的学院和大学试图增加从事科学工作的非洲裔、西班......