第34题: [单项选择]Poor health and lack of money may both be to educational progress roadblocks. A. restraints B. stains C. scarcities D. barriers 参考答案:D 答案解析:[解析] 健康状况欠佳与经济困难都是教育发展的障碍。restraint抑制。如:He is a man always speaking with restraint. 他是个说话拘谨的人。stain染