Drections:Questions 16 to 18 are based on the passage you have just heard.
1.[单选题]___________________.- A.By covering the credit card with a layer of plastic.
- B.By calling the credit card company for confirmation.
- C.By seeking help from the card reader maker Verifone.
- D.By typing the credit card number into the cash register.
2.[单选题]___________________.
- A.The card got damaged.
- B.The card was found invalid.
- C.The card reader failed to do the scanning.
- D.The card reader broke down unexpectedly.
3.[单选题]_________________.- A.Affect the sales of high-tech appliances.
- B.Change the lifestyle of many Americans.
- C.Give birth to many new technological inventions.
- D.Produce many low-tech fixes for high-tech failures.