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【单选题】
下面是关于PC机键盘的叙述，其中错误的是______。
A.
每次按键后，键盘向CPU发中断请求，由键盘中断处理程序完成扫描码到ASCII码的转换，并将ASCII码存入内存的键盘缓冲区
B.
它以串行方式向PC机输入所按键的扫描码，并将其直接存入内存的键盘缓冲区
C.
按键的编码可通过软件重新定义
D.
键盘工作时，相应电路会定时对按键矩阵进行扫描，得到所按键的位置信息，所以扫描码实际上就是按键的位置码
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举一反三
【单选题】自由基聚合的机理特征为( )。
A.
慢引发、快增长、快终止
B.
慢引发、快增长、速终止
C.
慢引发、快增长、无终止
D.
快引发、慢增长、速终止
查看完整题目与答案
【单选题】World Expo 2010 Shanghai China _ people from all over the world to the theme 'Better City,Better Life'. [     ]
A.
attends
B.
attracts
C.
allows
D.
advises
查看完整题目与答案
【单选题】---How do you find the plan? ---Wonderful. It   well more than expected.
A.
worked at
B.
worked out
C.
worked on
D.
worked with
查看完整题目与答案
【单选题】.The company ______ a survey to find out customers’ reaction to the new products.
A.
concerned
B.
conducted
C.
predicted
D.
previewed
查看完整题目与答案
【单选题】______ is _____ the students to find out the meaning and the usage of new words.
A.
What a dictionary does; help
B.
What dictionary does; to help
C.
How a dictionary does; help
D.
All that a dictionary does; helps
查看完整题目与答案
【简答题】7-煤的显微组分反射率的大小顺序是();加氢反应活性顺序是();干馏时,焦油和煤气的产率顺序是();氧含量顺序是() A:镜质组>壳质组>惰质组;B:镜质组>惰质组>壳质组;C:壳质组>惰质组>镜质组; D:壳质组>镜质组>惰质组;E:惰质组>镜质组>壳质组;F:惰质组>壳质组>镜质组
查看完整题目与答案
【多选题】自由基聚合反应的特征为
A.
慢引发
B.
快引发
C.
快增长
D.
慢增长
E.
速终止
查看完整题目与答案
【单选题】All has proved that World Expo 2010 Shanghai China is quite .
A.
active
B.
helpful
C.
proud
D.
successful
查看完整题目与答案
【简答题】With the new National Police Computer we are now able to find out details of car ownership and driving licenses ______.
查看完整题目与答案
【简答题】自由基聚合的特征为 , , , 。
查看完整题目与答案
相关题目：
【单选题】自由基聚合的机理特征为( )。
A.
慢引发、快增长、快终止
B.
慢引发、快增长、速终止
C.
慢引发、快增长、无终止
D.
快引发、慢增长、速终止
查看完整题目与答案
【单选题】World Expo 2010 Shanghai China _ people from all over the world to the theme 'Better City,Better Life'. [     ]
A.
attends
B.
attracts
C.
allows
D.
advises
查看完整题目与答案
【单选题】---How do you find the plan? ---Wonderful. It   well more than expected.
A.
worked at
B.
worked out
C.
worked on
D.
worked with
查看完整题目与答案
【单选题】.The company ______ a survey to find out customers’ reaction to the new products.
A.
concerned
B.
conducted
C.
predicted
D.
previewed
查看完整题目与答案
【单选题】______ is _____ the students to find out the meaning and the usage of new words.
A.
What a dictionary does; help
B.
What dictionary does; to help
C.
How a dictionary does; help
D.
All that a dictionary does; helps
查看完整题目与答案
【简答题】7-煤的显微组分反射率的大小顺序是();加氢反应活性顺序是();干馏时,焦油和煤气的产率顺序是();氧含量顺序是() A:镜质组>壳质组>惰质组;B:镜质组>惰质组>壳质组;C:壳质组>惰质组>镜质组; D:壳质组>镜质组>惰质组;E:惰质组>镜质组>壳质组;F:惰质组>壳质组>镜质组
查看完整题目与答案
【多选题】自由基聚合反应的特征为
A.
慢引发
B.
快引发
C.
快增长
D.
慢增长
E.
速终止
查看完整题目与答案
【单选题】All has proved that World Expo 2010 Shanghai China is quite .
A.
active
B.
helpful
C.
proud
D.
successful
查看完整题目与答案
【简答题】With the new National Police Computer we are now able to find out details of car ownership and driving licenses ______.
查看完整题目与答案
【简答题】自由基聚合的特征为 , , , 。
查看完整题目与答案