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【简答题】
MCS-51单片机的XTAL1和XTAL2 是 引脚。
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举一反三
【单选题】中断控制寄存器TCON中，位IT0控制外部中断0的触发信号形式，若IT0=1时，当P3.2引脚出现（ ）时，会向CPU申请中断
A.
低电平
B.
高电平
C.
上升沿
D.
下降沿
【单选题】听力原文：M: I wonder if an article like this can be translated by Mary? W: Well, if she can't translate it, no one can. Q: What does the woman imply about the article? (14)
A.
Anyone can do it well.
B.
No one can do it well.
C.
Mary probably can't do it.
D.
Only Mary can do it well.
【简答题】给出至少5种复合逻辑门电路的名称?
【简答题】I was blind, but I was ashamed of it if it was known. I refused to use a white stick and 36 asking for help. After all, I was a age girl, and I couldn’t bear people to look at me and think I was n...
【简答题】Corn originated in the New World and thus was not known in Europe until Columbus found it ________ in Cuba. A) being cultivated B) been cultivated C) having cultivated D) cultivating
【单选题】The outbreak of severe acute respiratory syndrome (SARS, 非典), which has no known cure for 【C1】______ afflicted by it, has brought widespread panic to Singaporeans and has 【C2】______ altered the patter...
A.
friends
B.
relatives
C.
victims
D.
children
【单选题】Little Tina can draw_____,her drawings are very_____.
A.
good;well
B.
well;good
C.
good;good
D.
well;well
【单选题】It was well known that Thomas Edison _____ the electric lamp.
A.
discovered
B.
invented
C.
found
D.
developed
【单选题】Singapore, known as a gourmets paradise, do not have to go out here, you can eat ______ food.
A.
abnormal
B.
absurd
C.
exotic
D.
erroneous
【简答题】阅读理解 John Denver, the writer and composer of Goodbye Again, is one of the best-known American folk singers and song writers. He is a country boy by birth and still prefers the mountains of Colorado to...
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