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【单选题】
CS—51单片机定时器外部中断1和外部中断0的触发方式选择位是 。
A.
TR1 和 TR0
B.
IE1 和 IE0
C.
IT1 和 IT0
D.
TF1 和 TF0
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举一反三
【单选题】Bill Gates and Walt Disney are two people America has __________ to be the Greatest American.
A.
nominated
B.
nicknamed
C.
appointed
D.
appeased
【单选题】Many teachers were praised at the meeting, Mr. Zhou _____.
A.
including
B.
being included
C.
to include
D.
included
【多选题】如果对产品进行一次抽样检验,在确定抽样方案类型时,需规定的检索要素有( )。
A.
批量
B.
AQL
C.
LQ
D.
严格度
E.
检验水平
【单选题】DM可分为同步TMD和异步TMD。若采用同步TMD,为了区分不同数据源的数据,发送端应采取的措施是各数据源使用固定时间片,接收端则按照____________来接收数据,就可以将多路信号复原。
A.
时间片上的目标地址
B.
数据上的时间标识
C.
数据上的数据源标识
D.
与源端相同的时间顺序
【多选题】类型随机抽样在对总体进行分类时,必须遵循()。
A.
完整性原则
B.
互斥性原则
C.
可对比性原则
D.
可测量性原则
E.
完备性原则
【简答题】类型随机抽样在对总体进行分类时,必须遵循( )。
【单选题】根据媒体类型,可将多媒体通信分为两大类( ).
A.
异步通信和等时通信
B.
异步通信和同步通信
C.
异步通信和多路复用
D.
异步通信和对等通信
【单选题】Many teachers were impressed by Kris's ________ attitude to life because he never gave up.
A.
positive
B.
casual
C.
careless
D.
practical
【简答题】There were many students and teachers at the party yesterday. I looked for two seats to sit down with my friend, Tim, but there were ____. A.neither B.nothing C.none D.no
【单选题】Many teachers were amazed to see how ___ they appeared on videotape.
A.
biased
B.
bias
C.
biasing
D.
being bised
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