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The last half of the nineteenth century______ the steady improvement in the mean
The last half of the nineteenth century______ the steady improvement in the mean
游客
2025-04-04
1
管理
问题
The last half of the nineteenth century______ the steady improvement in the means of travel.
选项
A、tested
B、proved
C、confirmed
D、witnessed
答案
D
解析
witness vt.目击,亲眼见到,注意到;为……(签名)作证。test vt.试验,测验;检验。prove vt.证明,证实;结果是,原来是。confirm vt.证实,肯定;进一步确定;批准,确认。
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