blacks是什么意思？

In 2007 the University of Wisconsin-Madison – one of the top five or so prestigious public universities – graduated 81% of its white students within six years, but only 56% of its blacks.

During the same time frame, the University of Northern Iowa graduated 67% of its white students, but only 39% of its blacks

According to data gathered by Harvard Law School professor Lani Guinier, the most selective schools are more likely to choose blacks who have at least one immigrant parent from Africa or the Caribbean than black students who are descendants of American slaves.

While the school usually graduated about 90% of its whites, the graduation rate of its blacks and Latinos had dipped to 63% by

Personality traits of successful blacks.

blacks and whites behaved differently during the election

whites' attitude towards blacks has dramatically changed

Obama's election has eliminated the prejudice against blacks

The change in bias against blacks is slow in coming.

Bias against blacks has experienced an unusual drop

blacks still face obstacles in political participation