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【简答题】
输入单片机的复位信号需要 __________ 个机器周期以上的 ___________ 电平时即为有效,用以完成单片机的复位初始化操作。
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举一反三
【单选题】Vincent Walsh and his colleagues did the experiment in order to ______.
A.
see which ear is more sensitive to beeps
B.
find out the relationship between time and life
C.
study how time changes at the 4th and 5th beeps
D.
observe how people's perception of time changes
【简答题】( )why Vincent didn’t want to be jim’s roommate?It was --- jim didn’t do the cleaning --- .A. why, in time B. that,on time C. because, on time D. because, for time
【单选题】假定Picture1和Text1分别是图片框和文本框的名称,下列不正确的是( )。
A.
Print 25
B.
Picture1.Print 25
C.
Text1.Print 25
D.
Debug.Print 25
【简答题】n.出版物_____
【单选题】假定Picture1和Text1分别为图框和文本框的名称,则下列错误的语句是
A.
Print 25
B.
Picture1.Print 25
C.
Text1.Print 25
D.
Debug.Print 25
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