DVD-ROM光盘最多可存储17GB的信息,比CD-ROM光盘的650MB大的多。DVD-ROM光盘是通过__来提高存储容量的()
A.减小读取激光波长,减少光学物镜数值孔径(numerical aperture of objective)
B.减小读取激光波长,增大光学物镜数值孔径(numerical aperture of objective)
C.增大读取激光波长,减少光学物镜数值孔径(numerical aperture of objective)
D.增大读取激光波长,增大光学物镜数值孔径(numerical aperture of objective)
B、减小读取激光波长,增大光学物镜数值孔径(numerical aperture of objective)