When we visited the country, our {{U}}principal{{/U}} impression was one of poverty and hardship.

题库:综合类 类型:最佳选择题 时间:2017-07-03 03:14:08 免费下载:《单选题》Word试卷

When we visited the country, our {{U}}principal{{/U}} impression was one of poverty and hardship.
A.main
B.central
C.unforgettable
D.strong

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