【单选题】【消耗次数：1】
用8051的定时器0作定时方式，用模式2，则初始化编程为。
①
MOV TOMD，#06H
②
MOV TOMD，#02H
③
MOV TOMD，#10H
④
MOV TOMD，#60H
参考答案：
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相关题目
【单选题】
定时器T1作定时方式，使用工作方式2，则初始化编程为（ ）。
①
MOV TOMD，#06H
②
MOV TOMD，#20H
③
MOV TOMD，#10H
④
MOV TOMD，#60H
【简答题】
设(70H)=60H,(60H)=20H,P1为输入口，状态为0B7H,执行如下程序：MOV R0,#70H MOV A,@R0 MOV R1,A MOV B,@R1 MOV @R0,P1 。问R0、A、R1、B和70H中的数据是多少？
【单选题】
用8051的定时器，若可以软件启动，应使TOMD中的。
①
GATE位置1
②
C/<img width=15 height=13 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:\Users\ADMINI~1\AppData\Local\Temp\ksohtml207924\wps11.jpg style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/>位置1
③
GATE位置0
④
C/<img width=15 height=13 src=http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/spacer.gif word_img=file:///C:\Users\ADMINI~1\AppData\Local\Temp\ksohtml207924\wps12.jpg style=background:url(http://www.ahjxjy.cn/design/html/js/vender/ueditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd/>位置0
【单选题】
定时器T1作定时方式，使用方式1，则初始化编程为（ ） 。
①
OV TOMD，#01H
②
OV TOMD，#50H
③
OV TOMD，#10H
④
OV TOMD，#02H
【单选题】
8051的定时器T0作计数方式，用模式1(16位计数器)则应用指令初始化编程。
①
MOV TMOD ，#01H
②
MOV TMOD ，#10H
③
MOV TMOD ，#05H
④
MOV TCON ，#05H
随机题目
【单选题】
Never before ___ in greater need of modern public transport than it is today.
①
?has this city been
②
?this city has been
③
?was this city
④
this city was
【单选题】
Little ___ that we were watching his every move, so he seemed to be going his own way in this business.
①
he realized
②
?he didn’t realize
③
?didn’t he realize
④
?did he realize
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It is what you do rather than what you say ___ matters.
①
that
②
what
③
which
④
this
【单选题】
After dinner the minister made a short ___ to the guests.
①
delivery
②
pronunciation
③
conversation
④
speech
【单选题】
It was for this reason ___ her uncle moved out of New York and settled down in a small village.
①
which
②
why
③
that
④
how
【单选题】
The car salesman took the customer for a driver in the new model in order to ___ its improved features.
①
advocate
②
demonstrate
③
exhibit
④
reveal
【单选题】
I caught a___ of the car before it disappeared around the bend.
①
glance
②
glimpse
③
glare
④
stare
【单选题】
Alice ___her father that both she and her husband would be happy if he would live with them.
①
convinced
②
reinforced
③
pledged
④
required
【单选题】
Never in my wildest dreams ___ these people are living in such poor conditions.
①
I could imagine
②
?could I imagine
③
?I couldn’t imagine
④
?couldn’t I imagine
【单选题】
It was ___ back home after the experiments.
①
not until midnight did he go
②
until midnight that he didn’t go
③
not until midnight that he went
④
until midnight when he didn’t go