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【单选题】
设一个32位微处理器配有一个16位的外部数据总线,总线的时钟频率为100MHZ,总线传输的最短周期为5个时钟周期,每一个总线传输周期可传送一个字,试计算总线的最大数据传输率。A.
10MBps
B.
20MBps
C.
40MBps
D.
80MBps
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【简答题】The Conference was a (succeed). We were all satisfied.
【单选题】Don't turn off the computer before closing all programs, you should have problems.
A.
or
B.
and
C.
but
D.
so
【单选题】One reason for water shortage is that ______.
A.
people in Europe don't turn off their taps
B.
people drill too many wells and pollute them
C.
the population has been continuously rising
D.
there is not much underground water
【单选题】Don't turn the stove off the meat ______.
A.
is cooked
B.
has been cooked
C.
is being cooked
D.
is cooking
【单选题】What is the best title for the text?
A.
Don't Turn Off Your Biological Clock.
B.
Day Working is Better Than Night Working.
C.
Night Workers: Be Careful.
D.
What is Bad of Night Working.
【单选题】Don't turn off the computer before closing all programs,_____ you could have problems.
A.
or
B.
and
C.
but
D.
so
【单选题】关于前期物业服务合同的说法，错误的是（ ）。
A.
前期物业服务合同具有过渡性
B.
前期物业服务合同属于要式合同
C.
前期物业服务合同以书面方式签订
D.
前期物业服务合同没有合同期限限制
【单选题】关于前期物业服务合同特点的说法，错误的是( )。
A.
前期物业服务合同由建设单位和物业服务企业签订
B.
前期物业服务合同属于书面合同
C.
前期物业服务合同的有效期须为3至5年
D.
前期物业服务合同属于附终止条件的合同
【单选题】Don't turn off the light, I a report now.
A.
have been reading
B.
read
C.
am reading
D.
have read
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