专升本考试

【单选题】 A postage stamp's value to collectors is raised if ______.
A．there are few others like it
B．there are no errors on the stamps
C．a mistake is made in the ,printing
D．both A and C

网考网参考答案：C
网考网解析：
此题为理解题。根据第2段第1句Any mistake made in the printing of a stamp raises its value o stamp collectors可以看出，对集邮者而言，邮票的印刷的任何错误都可使该邮票升值，故C为正确答案。A也能使其增值，但文中并没有提及到。B不符常情。 查看试题解析出处>>