单选题 How can a single postage stamp be worth $ 16,800?
Any mistake made in the printing of a stamp raises its value to stamp collectors. A mistake on one inexpensive postage stamp has made the stamp worth a million and a half times its original value.
The mistake was made more than a hundred years ago in the British colony of Mauritius, a small island in the Indian Ocean. In 1847, an order for stamps was sent to a London printer--Mauritius was to become the fourth country in the world to issue stamps.
(32) Before the order was filled and delivered, a ball was planned at Mauritius' Government House, and stamps were needed to send out the invitations. A local printer was instructed to copy the design for the stamps. He accidentally inscribed the words "Post Office" instead of "Post Paid" on the several hundred stamps that he printed.
Today there are only 26 of these misprinted stamps left-fourteen One-Penny OrangeReds and twelve Two-penny Blues. Because of the Two-penny Blues' rareness and age, collectors have paid as much as $ 16,800 for it.

单选题 A postage stamp's value to collectors is raised if______.
A. there are few others like it B. there are errors on the stamp
C. a mistake is made in the printing D. both A and C

单选题 Mauritius is the name of______.
A. an island kingdom B. a British colony
C. a province of India D. a London printer

单选题 The mistake on the locally printed postage stamps was in the
A. spelling of postage B. wording C. price D. color

单选题 Implied but not stated:
A. All correctly printed stamps are worthless.
B. Mauritius needed the stamps to send out invitations to a ball.
C. The printer was punished for his mistakes.
D. Collectors are constantly looking for stamps with mistakes.

单选题 The best title for this passage is______.
A. The "Post Paid" Error B. The Two-penny Blue
C. A London Printer's Error D. How Mauritius Became Famous