以下是民意調查的一些基本特點和重要性： 抽樣：由於不可能向每一個人詢問意見，所以調查者會選擇一個代表性的樣本進行調查。這樣本的大小和抽樣方法都會影響調查的準確性和可靠性。 Your Browser isn’t supported any longer. Update it to have the most effective YouTube experience and our most current options. Learn more Find out our breathtaking number of flowers, that includes the perfect in-seaso... https://arayoru.com/