空白黑板和书籍. 教室里空白黑板的矢量插图，配有课本和粉笔

XS

480x360px 6.7" x 5" @72dpi

64kB | jpg

S

800x600px 2.7" x 2" @300dpi

134kB | jpg

M

1999x1500px 6.7" x 5" @300dpi

541kB | jpg

L

2581x1936px 8.6" x 6.5" @300dpi

800kB | jpg

XL

3333x2500px 11.1" x 8.3" @300dpi

727kB | jpg

MAX

3999x3000px 13.3" x 10" @300dpi

1.4MB | jpg

TIFF

4714x3536px 15.7" x 11.8" @300dpi

47.7MB | tiff