More than two _______years ago, people knew little about the universe.A.thousandsB.thousandC.thousan

题目简介

More than two _______years ago, people knew little about the universe.A.thousandsB.thousandC.thousan

题目详情

More than two _______years ago, people knew little about the universe.
A.thousandsB.thousandC.thousands ofD.thousand of
题型:单选题难度:偏易来源:不详

答案

B
此题考查名词的量。确切数量常用数词+hundred/thousand/million/billion+名词的复数形式;不确切数量常用hundreds/thousands/millions/billions + of+名词的复数形式.

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