What is the meaning of fun according to the author？

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題目：What is the meaning of fun according to the author？

騰訊雲服務器2核/2G/3M（61元/首年） 騰訊輕量雲2核/2G/4M（99元/年續費同價）騰訊雲服務器老用戶專享

A.Not serious but important， spontaneous

B.Best part of any job

C.About laughter， play and entertainment

D.A balance to misery

正確答案：Not serious but important， spontaneous；Best part of any job；About laughter， play and entertainment；A balance to misery

關鍵字：智慧樹