【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
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【单选题】 ALU表示。
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【单选题】 单片机的机器周期为2us,则其晶振频率fosc为( )MHz.
①  1
②  2
③  6
④  12
【单选题】 在单片机中,通常将一些中间计算结果放在( )中
①  累加器
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【单选题】 80C51单片机的( )口的引脚,还具有外中断、串行通信等第二功能。
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【单选题】 当8051单片机外接时钟信号时,应从(  )脚接入。
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【单选题】 8051单片机片内RAM的低32个字节分成( )个工作寄存器组,每组占8个字节
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③  32K
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【单选题】 8051单片机的VCC(40)引脚是引脚。
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【单选题】 8051单片机的机器周期为2μs,则其晶振频率fosc为MHz。
①  1
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③  6
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①  3
②  10
③  21
④  128