【题目】We could see nothing in the thick fog at a _____ of two meters, so we got lost.
A. distanceB. lengthC. wayD. space
在线课程【答案】A
【解析】
考查名词辨析。句意：大雾天里,我们相距两米就什么也看不到了,所以我们迷路了。A. distance距离；B. length长度；C. way方式；D. space空间。由“We could see nothing in the thick fog”可知，at a distance of “隔着......距离”符合句意。故A选项正确。