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【单选题】
微型计算机中控制总线提供的完整信息是_____。A.
存储器和I/O设备的地址码
B.
所有存储器和I/O设备的时序信号和控制信号
C.
来自I/O设备和存储器的响应信号
D.
上述各项
E.
上述B、C项
F.
上述A、B项
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皮皮学刷刷变学霸
举一反三
【单选题】After graduation from high school we will reach a point _________ we have to decide which university to attend．
A.
that
B.
what
C.
which
D.
where
【单选题】I still remembered the day when we ______ in high school,before we left,we got together singsing a song of farewell.
A.
break down
B.
break out
C.
break up
D.
break off
【单选题】We have a lot of _____ at Senior High School, and at the same time the _______ in studying we have made is rapid.
A.
funs, progress
B.
funnies, progesses
C.
funs, progress
D.
fun, progress
【单选题】We believe _______ we could finally go to a good senior high school.
A.
what
B.
if
C.
that
D.
when
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