11.(2023•合肥模拟)已知线段PQPQPQ的中点为等边三角形ABCABCABC的顶点AAA,且AB=PQ=2AB=PQ=2AB=PQ=2,当PQPQPQ绕点AAA转动时,BP→⋅CQ→\overrightarrow{BP}\cdot \overrightarrow{CQ}BP⋅CQ的取值范围是((( )))