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  • 科目:英语
  • 题型:选择题
  • 难度:中等
  • 人气:74

Nowadays China        for its new "four great inventions"-shared bicycles, electronic payments, high-speed railways and online shopping.(  )

A.

was knowing

B.

was known

C.

is knowing

D.

is known

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NowadaysChinaforitsnewfourgrea