Do scientists do or make experiments?, Do scientists do or make research?, Do scientists invent or collect specimens?, Do scientists discover or develop a theory?, Do scientists take or do measurements?, Did Columbus discover or invent America?, Did Bell discover or invent the telephone?, Do we do or take notes?.

排行榜

隨機卡是一個開放式範本。它不會為排行榜生成分數。

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恢復自動保存: ?