题目内容
(请给出正确答案)
[单选题]
7、6 ()以来,配送在我国被证明为一种非常好的物流方式,在很多大城市建立了配送中心. () since then, distribution has been proved to be a very good way of logistics in China, and distribution centers have been established in many big cities.
A.1970s
B.1980s
C.1990s
D.year 2000
答案
20世纪90年代
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