问题
选择题
His friends were ___________and encouraged him to publish his ideas, but Copernicus was cautious.
A．technical
B．official
C．educated
D．enthusiastic
答案
答案：D
题目分析： 考查形容词辨析A有技术的B官方的C 教育的D热情的。根据题意 他的朋友很是热情，鼓励他去表达他的想法，但是哥白尼很谨慎。故选 D项。
考点 形容词辨析