A:3cm
B:4cm
C:5cm
D:6 cm
急性结膜炎,俗称红眼病是一种传染病,传染性很强,通常发病部位在( )
命题P:“∃x∈R,x2+1<2x”的否定¬P为( )
3003003的最高位是( )位
— . It's small, but I like it.