【单选题】【消耗次数：1】
ASCII码采用7位二进制数编码，最多能表示( )个字符.
①
7
②
64
③
127
④
128
参考答案：
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相关题目
【单选题】
设有二进制数x=－01101101，若采用8位二进制数表示，则[x]补=______。
①
11101101
②
10010011
③
000100111
④
110010010
随机题目
【单选题】
He didnt seem to mind_____the music while he was studying.
①
them listening
②
them to listen to
③
when she returned
④
that did she return
【单选题】
_____all the representatives still not there,the meeting was postponed for several hours.
①
Because
②
With
③
By
④
Without
【单选题】
Ive been telling you_____not to do that,but you neve listened to me.Thats why you got into trouble.
①
at times
②
time before time
③
time and again
④
for the time being
【单选题】
It seems as if the sun_____round the earth since it rises in the east and sets in the west.
①
circles
②
is circling
③
has been circling
④
were circling
【单选题】
If he_____the storekeepers scissors,he would have forgotten to buy a pair.
①
would not see
②
had not seen
③
having not seen
④
has not seen
【单选题】
It was not until she had finished all her work_____.
①
did she return
②
that she returned
③
when she returned
④
that did she return