with the introduction of the computer,libraries to

发布时间:2021-02-23 00:12:05

with the introduction of the puter,libraries today arequite different from

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b,what they were 计算机的引进,使今天的图书馆和过去大不相同.
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供参考答案1:
D题目说的是过去的图书馆 libraries 是复数的
所以就只能用those指代喽
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