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Once an old man was walking in a street with his horse. It was raining hard. The old man was cold because he was walking in the rain. He wanted to stay in a restaurant. It was a quarter past three in the afternoon. The old man got to a small restaurant. A lot of people crowded in it. The old man couldn't come near the fireplace. He thought and thought.At last he said to the waiters, “ Take some fish to my horse.” The waiter and the other people were very surprised. The waitered said, “A horse doesn't eat fish.” The old man told the waiter, “ The horse is versatile . It can sing, dance and does all kinds of things. It can eat fish, too.” So the waiter took some fish to the horse. All the people in the restaurant rushed out to see the horse eat fish except(除了……之外) the old man. Now the old man sat beside the fire. After a while the waiter returned and said. “Your horse didn't eat any fish.” The old man said, “All right, take the fish back and put it on the table. I’ll eat it.” 小题1:The old man felt very cold because_______. A.it was a cloudy and windy day. B.it snowed heavily for a long time C.he was travelling in a heavy rain D.he was hungry and thirsty 小题2:The people in the restaurant all ran out because_________ A.They want to see the old man B.they wanted the horse eat fish C.the old man told them the horse came D.There was no fire over the stove 小题3:The underlined word “versatile” means: A.笨的 B.滑稽的 C.兴奋的 D.多才多艺的 小题4:All the people in the restaurant rushed out _____ except the old man. A.to see the horse sing B.to watch the horse play games C.to look for the horse D.to see the horse eat fish 小题5:Why did the old man ask the waiter to take some fish to his horse?  Because ________ A.his horse like eating fish B.he had a special fish C.he wanted to sit near the fire, but wasn’t able to do so at first. D.he himself also liked to eat fish
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【单选题】单片机程序存储器的寻址范围是由程序计数PC的位数决定的,MCS-51的PC为16位,因此其寻址范围是()。
A.
4KB
B.
64KB
C.
8KB
D.
128KB
【简答题】电气控制系统图一般包括 : 、 和
【简答题】单片机程序存储器的寻址范围由PC的位数决定。AT89C51的PC为16位,因此程序存储器地址空间是( )。
【单选题】MCS-51单片机程序存储器的寻址范围是由程序计数器PC的位数所决定的,因为MCS-51的PC是16位的,因此其寻址的范围为()KB
A.
8
B.
16
C.
32
D.
64
【判断题】电气控制系统图包括电气原理图和电气安装图。(0分)
A.
正确
B.
错误
【单选题】单片机程序存储器的寻址范围由PC指针的位数决定的。MCS-51单片机PC的位数为16位,因此其寻址范围是()
A.
4KB
B.
64KB
C.
8KB
D.
128KB
【简答题】常用的电气控制系统图包括电气原理图、()和电气接线图。
【简答题】电气控制系统图包括( )图、( ) 图和( )图。
【判断题】电气控制系统图包括电气原理图、电气设备安装图和电器安装布置图。( )
A.
正确
B.
错误
【单选题】单片机程序存储器的寻址范围由PC的位数决定。51单片机的PC 为16位,因此程序存储器地址空间可达()
A.
64KB
B.
4KB
C.
1KB
D.
16KB
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