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【单选题】
下面关于P0口,描述错误的是( )。A.
作为输出口使用时,不需要外接上拉电阻
B.
P0口若作为输入口使用,需要先写1
C.
外扩存储器时,P0可作为数据线使用
D.
是通用的双向I/O口
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举一反三
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【简答题】Task 3 Complete the sentences with words from the box. 请使用方框里的单词,将句子补充完整(连线题)
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【单选题】下述程序的输出结果是( )。 #include main { int i； for(i=l；i=20)＆＆(i*i<=100)) break； } printf('％d＼n'，i*i)； }
A.
49
B.
36
C.
25
D.
64
【简答题】Task 3 Complete the sentences with the following words or phrases. Change the form if necessary. in an efort to charge for assess commit oneself to on hand The database allows you t...
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