37. No one has come up with a better explanation of why dinosaurs .A. died awayB. died for

问题补充：

37. No one has come up with a better explanation of why dinosaurs .

A. died away

B. died for

C. died of

D. died out

答案：

A. died away

B. died for

C. died of

(答案→)D. died out

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