--You’ve been driving for hours．Shall I ________？

--No, that’s OK．I enjoy driving and I know you hate it, especially on the highway．

A．take back

B．take on

C．take over

D．take up

某种群个体间竞争强烈，排斥性强，则其内分布型是（）。

A.随机分布

B.均匀分布

C.成丛分布

D.群集分布