第6题: [单项选择]The mayor didn’t have time so far to go into it ______ , but he gave as an idea about his plan. A. in conclusion B. at hand C. at length D. in turn 参考答案:C 答案解析:句意:市长还没来得及详尽地说明,但他向我们透露了该计划的总体构想。at length此处意为“详尽地”,最符合题意。而at hand意为“在手边,即将到来”;in turn作“依次,轮流”讲;in c