单选题 Now about half of the women who work in social welfare are part-time, as compared to 38% in the private sector.
【正确答案】 D
【答案解析】[解析] welfare健康,福利。guarantee担保;farewell告别,欢送;well-off幸运的,好运的;well-being健康,幸福。故答案为D。