— What's the population the U.S.A?— The U.S.A has population of 297 million.A．of…aB．

题目简介

— What's the population ____ the U.S.A?— The U.S.A has ____ population of 297 million.A．of…aB．

— What's the population ____ the U.S.A?
— The U.S.A has ____ population of 297 million.

A．of…a

B．of… /,

C．in…a

D．in … some

题型：单选题难度：中档来源：不详

试题分析：提问人口用What's the population of……population作为人口的意思来说时，是可数名词用作单数，故选A。