【单选题】【消耗次数：1】
8051单片机的定时器0的运行控制位是。
①
TF0
②
IR0
③
IT0
④
TR0
参考答案：
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相关题目
【单选题】
8051单片机的定时器T0用作计数方式时是____。
①
由内部时钟频率定时，一个时钟周期加1
②
由内部时钟频率定时，一个机器周期加1
③
由外部计数脉冲计数，下降沿加1
④
由外部计数脉冲计数，一个机器周期加1
【单选题】
用8051的定时器T0定时，用模式2，则应____。
①
启动T0前向TH0置入计数初值，TL0置0，以后每次重新计数前要重新置入计数初值
②
启动T0前向TH0、TL0置入计数初值，以后每次重新计数前要重新置入计数初值
③
启动T0前向TH0、TL0置入计数初值，以后不再置入
④
启动T0前向TH0、TL0置入相同的计数初值，以后不再置入
随机题目
【单选题】
A: [填空] when you cross the street. Theres so much traffic. B: Yes, I will.
①
Be careful
②
Take care
③
Care about
④
Look out
【单选题】
A: Sorry to bother you. B: [填空].
①
Thats okay
②
No, you cant
③
Thats good
④
Dont mention it
【单选题】
A: Must I take a train? B: No, you [填空]. You can take a plane.
①
dont
②
must not
③
dont have to
④
can not
【单选题】
A: Dont worry. Ill leave the message on his desk. B: [填空].
①
Thats great
②
Thats great idea
③
Thank goodness
④
Its kind of you
【单选题】
A: May I help you, madam? B: [填空].
①
Thats very kind of you
②
You are very nice
③
Youd better give me a hand
④
Yes, Id like a kilo of apples
【单选题】
A: I didnt mean to do that. Please forgive me. B: [填空].
①
You are wrong
②
You are welcome
③
Thats all right
④
Thats OK
【单选题】
A: How do you do? B: [填空]
①
Fine, thank you.
②
How do you do?
③
Not too bad.
④
Very well.
【单选题】
A: [填空]? B: This is Franco Rossi speaking.
①
Who are you
②
Who are you calling
③
Who is that
④
What do you want to say
【单选题】
A: Where there is a will, there is a way. B: [填空].
①
Thats right
②
Thats all right
③
All right
④
Not at all
【单选题】
A: Your newly bought bike is very fashionable. B: [填空].
①
Its very kind of you to say so
②
Yes, very good
③
No, not good
④
Really