EAN条码是国际上通用的商品代码，商品条形码的标准码由（）位数字码及相应的条码符号组成。
A.8
B.7
C.14
D.13
参考答案：D
- .to go fishing with me? -Sure,I'd love to.
A． Would you like
B．What about
C．Do you enjoy
D．Why not
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