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【单选题】
若“并非只有是北京人,他说北京话”这个命题为真,则( )
A.
“是北京人”必然为真
B.
“不是北京人”必然为真
C.
“会说北京话”必然为假
D.
“不会说北京话”必然为真
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【判断题】8051单片机RST引脚,当输入的复位信号延续2个机器周期以上的低电平时即为有效,用以完成复位初始化操作。
A.
正确
B.
错误
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【简答题】单片机的9号引脚RST是 引脚, 电平有效(填“高”或“低”)
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【简答题】要使 MCS-51 单片机有效复位,在复位引脚 RST 上应至少保持 个机器周期的 电平。
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【简答题】RST 复位信号输入端,_________(填写高电平或低电平)有效,此引脚加上持续时间大于 _________ 个机器周期( 24 个时钟振荡周期)的高电平时,就可以完成复位操作。
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【单选题】What did the study find about the effect of having more job Authority?
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
I increases symptoms of depression in both men and women.
查看完整题目与答案
【单选题】News report 1--- 1. What did the study find about the effect of having more job authority? [音频]
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
It increases symptoms of depression in both men and women.
查看完整题目与答案
【简答题】听下面一段材料，回答第1至第2题。 1. What did the man promise the woman to do? [     ] A. To help her study for the exams. B. To help her learn Japanese. C. To help her go to Japan. 2. Why does the man go to Japan? [...
查看完整题目与答案
【单选题】News report 1--- 1. What did the study find about the effect of having more job authority?
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
It increases symptoms of depression in both men and women.
查看完整题目与答案
【单选题】当（）引脚输入的信号连续2个机器周期以上高电平时即为有效，用以完成单片机的复位初始化操作。
A.
Vss
B.
RST
C.
XTAL1
D.
Vcc
查看完整题目与答案
【单选题】[音频] News report 1--- 1. What did the study find about the effect of having more job authority?
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
It increases symptoms of depression in both men and women.
查看完整题目与答案
相关题目：
【判断题】8051单片机RST引脚,当输入的复位信号延续2个机器周期以上的低电平时即为有效,用以完成复位初始化操作。
A.
正确
B.
错误
查看完整题目与答案
【简答题】单片机的9号引脚RST是 引脚, 电平有效(填“高”或“低”)
查看完整题目与答案
【简答题】要使 MCS-51 单片机有效复位,在复位引脚 RST 上应至少保持 个机器周期的 电平。
查看完整题目与答案
【简答题】RST 复位信号输入端,_________(填写高电平或低电平)有效,此引脚加上持续时间大于 _________ 个机器周期( 24 个时钟振荡周期)的高电平时,就可以完成复位操作。
查看完整题目与答案
【单选题】What did the study find about the effect of having more job Authority?
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
I increases symptoms of depression in both men and women.
查看完整题目与答案
【单选题】News report 1--- 1. What did the study find about the effect of having more job authority? [音频]
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
It increases symptoms of depression in both men and women.
查看完整题目与答案
【简答题】听下面一段材料，回答第1至第2题。 1. What did the man promise the woman to do? [     ] A. To help her study for the exams. B. To help her learn Japanese. C. To help her go to Japan. 2. Why does the man go to Japan? [...
查看完整题目与答案
【单选题】News report 1--- 1. What did the study find about the effect of having more job authority?
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
It increases symptoms of depression in both men and women.
查看完整题目与答案
【单选题】当（）引脚输入的信号连续2个机器周期以上高电平时即为有效，用以完成单片机的复位初始化操作。
A.
Vss
B.
RST
C.
XTAL1
D.
Vcc
查看完整题目与答案
【单选题】[音频] News report 1--- 1. What did the study find about the effect of having more job authority?
A.
It increases symptoms of depression in men.
B.
It increases symptoms of depression in women.
C.
It decreases symptoms of depression in both men and women.
D.
It increases symptoms of depression in both men and women.
查看完整题目与答案