问题:
Refer to the exhibit. Which ephone-dn type does Phone 10 represent?()
A . shared ephone-dn
B . overlaid ephone-dn
C . oual-line ephone-dn
D . single-line ephone-dn
E . dual-number ephone-dn
F . two ephone-dns with one number
Refer to the exhibit. Which ephone-dn type does Phone 10 represent?()
● 参考解析
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