11.   What few rights blacks enjoyed were eroded by burgeoning notions of racial superiority.

a. + superiority >>共 132
moral 10.88%
military 10.00%
technological 5.00%
technical 4.12%
overwhelming 3.53%
american 3.53%
racial 3.24%
numerical 2.94%
cultural 2.35%
intellectual 1.76%
racial + n. >>共 634
discrimination 7.89%
tension 5.95%
slur 4.77%
hatred 3.49%
epithet 2.96%
line 2.58%
issue 2.47%
bias 2.36%
preference 1.84%
minority 1.78%
superiority 0.17%
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