高一(1)班期末4个学科成绩平均分与年级平均分对照图表。用Python程序实现时,①②两行程序代码是?( )
import numpy as npimport matplotlib.pyplot as pltimport pandas as pddf=pd.read_csv("高一(1)班成绩.csv",encoding="gbk")x=np.array([1,2,3,4])y=df["年级平均"]y2=df["班级平均"] ① ② plt.xticks(x+0.15,["Chinese","Math","English","Politlics"])plt.show()
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