企源知识库

From a careful study of the ______ made by a criminal, the police can tell the height and weight of the person. （foot, print）
【正确答案】：footprints
【题目解析】：该题中空格处需要填入的词作介词of的宾语，故需要用名词形式，还要注意footprint是可数名词，此处需要用复数形式。