Many scientists have believed that there may be a _________of life on the Mar.A.markB.signalC.sighD.

题目简介

Many scientists have believed that there may be a _________of life on the Mar.A.markB.signalC.sighD.

题目详情

Many scientists have believed that there may be a _________of life on the Mar.
A.markB.signalC.sighD.sign
题型:单选题难度:偏易来源:不详

答案

D

试题分析:考查名词辨析:A. mark记号,B. signal信号,C. sigh叹息,D. sign标志,迹象,句意是:很多科学家一致相信在火星上可能有生命的迹象。选D。
点评:名词的词义辨析要根据上下文的意思进行,要注意名词的一些固定搭配。相似的名词要抓住本质的区别。

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