【单选题】【消耗次数：1】
以下关于群体规模的叙述中不正确的是（ ）。
①
群体规模能够影响群体的整体行为
②
研究表明，成员为偶数的群体似乎比成员为奇数的群体更受欢迎
③
相对而言，5～7人的群体在执行任务时较有效
④
如果群体的目标是解决复杂、困难的任务，那么应该是大群体比小群体更有效
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