in the old days people only had a ____idea of what other countries were like
问题描述：
in the old days people only had a ____idea of what other countries were like
A coarse B tough C rough D crude
答
A 颗粒大的,粗糙的
B 坚忍的,粗糙的
C 大概的,粗糙的
D 未完成的,粗糙的
选C rough idea