A-A+
A postage stamp's value to collectors is raise
问题详情
A postage stamp"s value to collectors is raised if______.
A.there are few others like it
B.there are no errors on the stamp
C.a mistake is made in the printing
D.both A and C请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:D
解析:根据全文分析,影响邮票收藏价值的有几个因素:第一,它是否印制有错误(第一段);第二,它的数量多少(最后一句,rareness)。第三,它的历史长短。(最后一句,age),所以A、C都是其中之一,所以选D。