15.It is_____to find him absent from school. A. scarce B. rare C. seldom D. never ...
9.Fortunately, the boat got only_____. A. a few damages B. few damages C. a little damage D. little damage ...
3.Our chances of winning the game are ___. A. slim B. light C. slant D. slender ...
22.The wind is blowing so hard at present. Thus I _____to stay indoors. A. choose B. would rather C. had better D. had ...
10.I _____ an opportunity of seeing you. A. long to B. long for C. look forward into D. try for ...
4.What’s ___ trouble with you --- I have ____ trouble with my stomach. A. /, the B. the, / C. the, a D. the, the ...
1.模拟电视制式中,PAL和SECAM制式的帧频均为30帧、秒。 A. 错误 B. 正确 ...
12.网络传输多媒体要解决下列哪些问题____(1)提高带宽 (2)采用先进的传输技术 (3)采用合理布局(4)采用优选的数据压缩技术 A. (1)(2)(3) B. (1)(2)(4) C. (2)(3)(4) D. 全部 ...
6.视频素材制作步骤:(1)获取数字视频文件 (2)视频素材编辑处理 (3)视频文件的转换和保存 (4)视频文件的显示播放输出和网络传输 A. (1)(2)(3) B. (1)(2)(4) C. (2)(3)(4) D. 全部 ...
3.数字视频可以无失真地进行无限次复制,而模拟视频信号每转录一次,就会有一次误差积累,导致信号失真。 A. 错误 B. 正确 ...