将等质量等溶质质量分数的氢氧化钠溶液与稀硫酸充分混合,所得溶液与下列那种物质不反应( )
A:CuSO4
B:Fe
C:BaCl2
D:SO2
已知:如图1,射线AB∥CD,∠CAB的角平分线交射线CD于点P1.
As you are not feeling well, you'd better_______ to school.