What will be the possible threat to plants in the future？A．Storms and floods.B．Disease and

听力原文： A debit card is a plastic card enabling the cardholder to purchase goods or services, or withdraw cash, the cost of which is immediately charged to his or her bank account. Debit cards are used to activate POS terminals in supermarkets, gas stations and stores. Together with credit cards, they are commonly referred to simply as bank cards. Debit cards are widely used to pay for goods and services. They are used in conjunction with a current bank account. The amount of the purchase is immediately debited from the account and no credit is involved, hence its name. A smart card is a secure, portable, tamper-resistant data-storage device. It is the exact size of a credit card and contains a computer with as much power as the original minicomputer.

24. What is a debit card？

25.Which is not mentioned as the place where a debit card is used？

26.What kind of account is in conjunction with the debit card？

27.What is not the feature of the smart card？

(24)

A．A plastic card.

B．A plastic card used by cardholder to purchase goods or services, or withdraw cash.

C．Something used to purchase goods or services, or withdraw cash.

D．A machine can be used to withdraw cash.

前台POS系统(名词解释)

A.针打式POS和热敏式POS

B.固定POS和无线POS

C.无线智能POS和多媒体POS

D.接触式POS和非接触式POS

POS系统的结构只有以下两种：独立的收银机POS系统，POS机、网络、计算机组成的POS系统。()

POS系统包含前台POS系统和()两大基本部分。

POS系统最早应用于零售业。()

A.传统POS

B.移动POS（mPOS）

C.电话POS

D.智能POS

A.POS被人为破坏

B.POS接口法兰头损坏

C.POS连接尾纤断

D.POS断电无法正常工作