Use the ax.plot method to plot the DataFrame index against the relative_temp column. Use the annotate method to add the

下面是完整代码： ```python fig, ax = plt.subplots() # Plot the relative temperature data ax.plot(climate_change.index, climate_change["relative_temp"]) # Annotate the date at which temperatures exceeded 1 degree ax.annotate('>1 degree', xy=(pd.Timestamp('2015-10-06'), 1)) plt.show() ```