第21题: [单项选择]France's methods for increasing family size give us a(n) ______ as to what might be done to encourage smaller families. A. proposal B. concept C. hint D. advice 参考答案:C 答案解析:[注释] proposal意为“提议,建议”;concept意为“概念,观念”;hint意为“暗示,提示”;advice意为“忠告,建议”。