举一反三
- Angular motion about the vertical axis of a vessel is called_____
- 中国大学MOOC: What are the units shown in the vertical axis (going up)?
- vertical的中文含义（ ）
- Roll control is provided by the ailerons about the airplane’s vertical axis from nose to tail.
- 翻译：“In these graphs the horizontal axis measures time, increasing toward the right away from the vertical axis.”
内容
- 0
中国大学MOOC: If a country produces good Y (measured on the vertical axis) and good X (measured on the horizontal axis), then the absolute value of the slope of its production possibility frontier is equal to _____________.
- 1
The<br/>vertical axis of the histogram is () A: Frequency B: Relative<br/>frequency C: Relative<br/>frequency density D: The<br/>values of a variable E: The<br/>intervals of a variable
- 2
以下属于坐标轴控制的命令的是？ A: axis auto B: axis tight C: axis fill D: axis ij
- 3
纵、横坐标轴采用等长刻度的命令是 A: axis square B: axis auto C: axis equal D: axis off
- 4
将df的行索引降序+列索引升序排序，正确的方法是（ ）。 A: 先df.sort_index(axis = 0,ascending = False)，然后df.sort_index(axis = 0,ascending = True) 。 B: df.sort_index(axis = 0,ascending = True).sort_index(axis = 1,ascending = False)。 C: df.sort_index(axis = 0,ascending = False).sort_index(axis = 1)。 D: 先df.sort_index(axis = 0,ascending = False)，然后df.sort_index(axis = 0) 。