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【简答题】
下列记账凭证可以不附原始凭证的是( )。
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【单选题】S7-200PLC中,比较指令操作数类型I指的是?
A.
整数比较
B.
双整数比较
C.
实数比较
D.
字节 比较
E.
字符串比较
【判断题】An oscilloscope shows you how voltage varies with time. It plots a voltage against time graph on the screen. The y-axis is voltageand the x-axis is time.This is most useful when you look at varying vo...
A.
正确
B.
错误
【判断题】An oscilloscope shows you how voltage varies with time. It plots a voltage against time graph on the screen. The y-axis is voltage and the X-axis is time. This is most useful when you look at varying ...
A.
正确
B.
错误
【单选题】用于两个相同数据类型的有符号或无符号数之间的比较判断操作的指令是( )。
A.
比较指令
B.
A指令
C.
OLD指令
D.
JMP指令
【单选题】S7-200PLC中,比较指令操作数类型B指的是?
A.
字节比较
B.
整数比较
C.
实数比较
D.
字符串比较
E.
双整数比较
【判断题】不同数据类型的比较指令,其操作数寻址范围是不同的。
A.
正确
B.
错误
【简答题】Matt is going on holidays to Brazil. Read this page from his guide book. Brazil is a beautiful country and you will have a wonderful holiday. Make sure you follow this advice. Safety--- If you lose yo...
【单选题】S7-200PLC中,比较指令操作数类型D指的是?
A.
整数比较
B.
字符串比较
C.
双整数比较
D.
字节比较
E.
实数比较
【单选题】S7-200PLC中,比较指令操作数类型R指的是?
A.
整数比较
B.
实数比较
C.
字符串比较
D.
字节比较
E.
双整数比较
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