对于支付密码器的使用，说法正确的是（）。

A.存款人签发支付密码正确的票据和结算凭证，但签章与预留银行印鉴不符，营业机构应予退票

B.存款人申请使用电子支付密码时，必须与营业机构签订《使用电子支付密码协议书》

C.电子支付密码应用碳素墨水或墨汁书写，不得涂改

D.出票人签发支付密码错误的支票，营业机构应予退票，并按退票有关规定进行处理

阅读理解。

                           Make the best of graduation secondhand market

     The hottest items at graduation sales are secondhand textbooks and class notes from graduating

upperclassmen. Some even sell guidelines for exams. Books used by upperclassmen will surely help you

study.

     Classics ranging from The Romance of Three Kingdoms and A Dream of the Red Mansion to

English novels such as Pride and Prejudice, Da Vinci Code have price tags much lower than their market price.

     Senior women students sell off clothes for job interviews and dates with their boy friends. Some even

sell fashion hair straighteners and hairdryers. Most of them are in good condition. Secondhand bicycles

are always the stars of the sale. The tip is to buy a lock which matches the price of the bike.

     Electronic devices（装置）such as MP4 players, recorders and PCs are also popular. But be

careful when choosing because dorm electric devices can be in poor condition because of overuse.

1. What are the favorite things sold at the graduation sales?

A. MP4 players and fashion clothes.

B. Secondhand textbooks and class notes.

C. Classics and secondhand bikes.

D. PCs and fashion hair straighteners.

2. According to the text, what should be taken into account when you buy a used bike?

A. A good quality hairdryer.

B. An electronic device.

C. A fashion hair straightener.

D. A well-matched lock.

3. Why should electric devices be carefully chosen at the market?

A. Because they are practical at a low price.

B. Because they are bargains in good quality.

C. Because they have already been overused.

D. Because they will do harm to your health.