问题
单项选择题
Columbus had accomplished one of the most amazing and courageous________in history.
A．performance
B．feats
C．events
D．acts
答案
参考答案：B
解析：词义辨析。A．performance行为，成绩，表演，执行；B．feats技艺，功绩，壮举；C．events事件，结局；D．acts行为，表现。accomplished feats完成／实现……的壮举。