If everybody takes an active part and says what he thinks, the discussion will s

游客2025-05-10 50

问题 If everybody takes an active part and says what he thinks, the discussion will surely be ______.

选项 A、fruitful
B、constructive
C、profound
D、lengthy

答案 A

解析 fruitful成功的，富有成效的；constructive建设性的；profound深刻的，意义深远的；lengthy冗长的，过分的。

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