题目内容
A study shows that walking fast in your old age is a ________ that you will live a long life.
A.sign B.mark C.symbol D.signal
A 考查名词辨析。sign 迹象,标志。句意:一项研究表明你在老年时走得快是你会长寿的标志。 mark 记号;symbol 象征;signal 信号。
![](http://thumb2018.1010pic.com/images/loading.gif)
练习册系列答案
相关题目
题目内容
A study shows that walking fast in your old age is a ________ that you will live a long life.
A.sign B.mark C.symbol D.signal
A 考查名词辨析。sign 迹象,标志。句意:一项研究表明你在老年时走得快是你会长寿的标志。 mark 记号;symbol 象征;signal 信号。