A-A+

If gold is marked with a Karat quality mark i

2022-08-05 15:19:20 问答库 阅读 169 次

问题详情

If gold is marked with a Karat quality mark, it must also
A.bear a national gold and silver stamp.
B.bear the registered trademark of the entity standing behind the mark.
C.bear a "made in the USA" mark.
D.bear a percentage mark.请帮忙给出正确答案和分析,谢谢!

参考答案

正确答案:B

考点: