1) In its early days, television relied on a) batteries b) mechanical discs c) satellite 2) Who invented the Iconoscope (image transmission device)? a) Vladimir Zworykin b) John Byrd  c) Paul Nipko 3) The first person to conceive of mechanical television a) Paul Nipko b) Campbell Sonton c) John Byrd 4) Television was invented by only one person. a) true b) false 5) The first color television broadcast was in 1925 a) true b) false 6) Paul Nipkow invented the scanning disc in 1884 a) true b) false

game

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？