这道题选B的理由,
问题描述：
这道题选B的理由,
Technology has quickened the rate _________ we communicate with the world around us.
A.for which B.at which C.to which D.with which
答
quicken the rate at加快.的频率
祝学习进步!如有帮助 请尽快采纳!O(∩_∩)O谢谢!