Obama president of the USA won Nobel Prize for Pease in .A. \; aB. a; the C. \; th

问题补充：

Obama, president of the USA, won Nobel Prize for Pease in .

A. \; a

B. a; the

C. \; the

D. the; a

答案：

A. \; a

B. a; the

(答案→)C. \; the

D. the; a

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