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【单选题】
模块组配编码法是指条码符号中,条与空是由标准宽度的模块组合而成的一个标准模块的宽度为()。
A.
0.33mm
B.
4.5mm
C.
3.3mm
D.
7mm
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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A.
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D.
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A.
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B.
错误
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A.
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B.
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C.
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D.
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