Inthesentence，“TheUNlatestreportexpectstheworldpopulationtogrowtobillionin，”，whichofthefollowingiscorrectabouttheunderlinedsentence?()A比现在全球人口多一倍B是现在全球人口的两倍C跟现有人口相比翻一番D比现在全球人口多两倍