试题与答案

条码扫描器从操作方式上分,可分为哪几类() A.接触式 B.手持式 C.固定式 D.

题型:多项选择题

题目:

条码扫描器从操作方式上分,可分为哪几类()

A.接触式

B.手持式

C.固定式

D.非接触式

答案:

参考答案:B, C

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