1、 In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the（ ）
答案: B.nominal scale
2、 The nominal scale of measurement has the properties of the（ ）.
答案: D.None of these alternatives is correct.
3、 The scale of measurement that is used to rank order the observation for a variable is called the（ ）.
答案: B.
1、 Which of the following statements is a normative statement?
答案: The government ought to take some measures to reduce the unemployment rate.
2、 Which of the following statements is not a positive statement?
答案: Air pollution is harmful, therefore, the government should increase the tax in order to reduce pollution.
3、 What is ...
1、 Microeconomics is often called
答案: price theory.
2、 Society faces trade-offs because of
答案: scarcity.
3、 The purpose of making assumptions in economic model building is to
答案: simplify the model while keeping important details.
4、 Which of the following is true?
答案: Efficiency refers to the size of the econo
1、 In the east part of China, along the Yellow Sea and the East Sea, there are ___.
答案: extensive plains
2、 _ is China’s mother river and _ is the longest river in China.
答案: The Yellow River; The Yangtze River
3、 The world’s highest point, Mount Everest, lies on the __ border.
答案: Sino-Nepalese
4、 If you want