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：[分析] 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。