【单选题】【消耗次数:1】
He was _____ his late twenties when he found his first job.
in
after
after
from
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相关题目
【单选题】 When he came back after an absence of 20 years, he found his hometown completely ____. ?
①  changing ?
②  to be changed ?
③  to change ?
④  changed ?
【单选题】 When we came back, he found his bicycle ____
①  was stolen
②  had stolen
③  had been stolen
④  is stolen
【单选题】 When he came to,he found himself________on a chair,with his hands________back.
①  to sit;tying
②  sitting;tying
③  seating;tied
④  seated;tied
【单选题】 19. When he came to, he found himself _____ on a chair, with his hands _____ back.
①  to sit; tying
②  sitting; tying
③  seating; tied
④  seated; tied
【单选题】 He was totally not aware when the thief _____ his wallet from him.
①  tricked
②  stole
③  robbed
④  deceived
【单选题】 19. He tried to _____ from his memory what he knew of his former neighbor..
①  think of
②  remember
③  summon
④  gave way
【判断题】 He will help his colleage with her job.
①  正确
②  错误
【单选题】 After so many years, he still ____ the hope that his lost son would return one day.
①  clang to
②  clung to
③  inclined to
④  subjected to
【单选题】 When he bent down to tie his shoelace, the belt of his trousers _____.
①  ruined
②  cracked
③  broke
④  split
【单选题】 He found it hard to ( ) his studies in such a noisy environment.
①  devote to
②  dwell on
③  concentrate on
④  depend on
随机题目
【单选题】 所定义的帧内编码帧(I帧图像)是指
①  插补的图像
②  全帧压缩编码帧,不需要参考其他画面
③  运动发生位移的图像
④  JPEG图像
【单选题】 图像序列中的两幅相邻图像,后一幅图像与前一幅图像之间有较大的关联,这是什么冗余?
①  空间冗余
②  时间冗余
③  信息熵冗余
④  视觉冗余
【单选题】 常用的压缩编码方法分为无损压缩和有损压缩,下面哪一个属于无损压缩。
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②  子带编码
③  模型编码
④  霍夫曼编码
【单选题】 JPEG标准中宏区块可分成几个8×8样点组成的像块?
①  1个
②  2个
③  4个
④  8个
【单选题】 在MPEG中为了提高数据压缩比,采用的方法是?
①  动补偿的运动估计
②  减少时域冗余与空间冗余
③  帧内图像数据与帧间图像数据压缩
④  向前预测与向后预测
【单选题】 霍夫曼编码采用的是哪种编码原理。
①  平均码长
②  自适应码长
③  变字长
④  等字长
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③  重量
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【单选题】 摄像机的主要参数不包括( )
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②  灵敏度
③  最高照度
④  彩色还原
【单选题】 视频信息的采集和显示播放是通过( )
①  声卡处理的音频媒体实现的
②  视频卡,播放软件和显示设备来实现的
③  通过三维动画软件生成实现的
④  通过计算机运算实现的
【单选题】 经机顶盒解码的高清电视信号是通过( )输入的
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③  S端子
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