问题
选择题
Many facts proved that long before Columbus ________ America, Chinese had visited it.
A．noticed
B．uncovered
C．discovered
D．arrived
答案
答案：C
词义辨析。Notice注意；uncoverer揭露，揭掉盖子；discover发现，发觉；arrive到达。句意：许多事实证明，在很久以前哥伦布发现美洲前，中国人已经到过美洲了。故选C。