is well-known China is a country.A. It; developingB. As developedC. That; developingD. A

问题补充：

is well-known, China is a country.

A. It; developing

B. As, developed

C. That; developing

D. As; developing

答案：

A. It; developing

B. As, developed

C. That; developing

(答案→)D. As; developing

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