单项选择题 绘制正圆形，使用椭圆工具和快捷键（ ）组合绘制

判断题 GDP can measure either the total income of everyone in the economy or the total expenditure on the economy’s output of goods and services, but GDP cannot measure both at the same time.

单项选择题 日本的北方和南方，太平洋一侧和（ ）一侧气候差异较大。