【单选题】【消耗次数:1】
我国电视制式规定水平扫描行数为( )。
25
30
525
625
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相关题目
【单选题】 我国电视标准规定,每场扫描线为-
①  625
②  312.5
③  25
④  50
【判断题】 我国使用的电视制式为NTSC制式。
①  正确
②  错误
【判断题】 我国电视采用隔行扫描方式的场频为25。
①  正确
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【单选题】 我国采用的电视制式是( )。
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③  SECAM
④  NTSC
【单选题】 我国电视标准规定,每帧画面扫描多少场
①  1
②  2
③  25
④  50
【单选题】 动画和视频都是利用快速变换帧的内容而达到运动效果的。帧率为30fps的电视制式是( ) 制式。
①  PAL
②  SECAM
③  FLASH
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【单选题】 我国普遍采用的制式为()。
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【单选题】 PAL制式是我国采用的彩色电视广播标准。它使用的帧频率为的:
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③  24帧/秒
④  25帧/秒
【多选题】 常见的电视制式有( )。
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③  DV
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【单选题】 我国普遍采用的视频制式为()
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【单选题】 We all thought ______ pity that you were unable to attend our meeting.
①  that
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③  this
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【单选题】 The shy girl felt ____ and uncomfortable when she could not answer her teacher’s questions.
①  amazed
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【单选题】 Free ______ of shampoo is distributed from door to door.
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【单选题】 A police officer claimed he had attempted to _______ paying his fare.
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【单选题】 He is late again today. I’ll ____ that he will not be late tomorrow.
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【单选题】 Must I take a taxi?No, you _______. You can take my car.
①  had better to
②  don’t
③  must not
④  don’t have to
【单选题】 So clear was his _____ of the case that others had no more to say.
①  attitude
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③  comment
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【单选题】 When Lily came home at 5 p.m. yesterday, her mother ______ dinner in the kitchen.
①  cooked
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