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【单选题】
S7-200PLC中,顺序功能图的三要素是指( )。A.
步、顺序、状态
B.
顺序、状态、条件
C.
转移条件、转移、动作
D.
步、转移、动作
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【单选题】某船上用户在F站终端上若连续键入008641184725165#,则可知它想与( )电话通信。
A.
太平洋区的某船站用户
B.
印度洋区的某船站用户
C.
日本的某陆地用户
D.
中国的某陆地用户
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A.
B船站/高速数据
B.
C船站/低速数据
C.
M船站/低速数据
D.
F船站/高速数据
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A.
B船站/传真
B.
C船站/电传
C.
M船站/电话
D.
F船站/传真
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