单选题
Psychologists have errantly mounted an offensive against what they describe as
nastiness
to ward students by educators.
A、
arbitrariness
B、
unpleasantness
C、
severity
D、
aloofness
【正确答案】
B
【答案解析】
arbitrariness霸道，恣意。unpleasantness煞风景的事，不愉快的事。severity严肃，严格。aloofness超然的态度。nastiness污秽，不洁。
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