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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:74

—China’s high-speed railway technology ________ the world now.

—That’s true. It has developed rapidly over the past years.

A.

led

B.

was leading

C.

is leading

D.

will lead

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—China’shighspeedrailwaytechno