题目

消化食物和吸收营养物质的系统是 （  ） Ａ、消化系统     Ｂ、循环系统 Ｃ、神经系统  Ｄ、内分泌系统 答案： A-A growing number of workers choose to stay in big cities with their own hard work.-They badly need a feeling of ______ and trust here.A. warmth B. growth C. faith D. truth