题目内容：

    A few years ago, a doctor gave a wrong prescription to a 9-year-old boy because he had accidentally clicked the next medicine listed in the drop-down menu. Unfortunately, the boy died.

Dr. Gidi Stein heard the story and felt forced to do something. “It was like killing someone with a spelling error. He just clicked on the wrong button…Stein said. “One would have thought there’d be some kind of spell-checker to prevent these terrible things from happening. But apparently this is not the case.”

Several things were immediately obvious to the 54-year-old Stein, who had previously studied computer science. “If you look at this problem from a bird’s eye view, there were so many places down the line where this decision could have been stopped-from the physician to the pharmacy (药房) even to the mother. All of them had all the relevant information to have the judgment that this was just the wrong drug for the wrong patient. For Stein, it represented a systematic failure.

Stein compared this with credit cards. “If you use your credit card in the daily routine over time, a pattern emerges of how we use our cards : the grocery store, the gas station in our local town. If your credit card would appear tomorrow in Zimbabwe, it would be unusual. The credit card company would call you and say, “‘Hey, was that you?’”

But nothing like that existed in the field of prescription drugs. So Stein set up a company called MedAware. He came up with a machine learning outliner detection system. In other words, he trained the computers to realize if a doctor accidentally prescribed the wrong medicine.

The system is already used in hospitals and doctor5 s offices. To date, MedAware has used their technology to help nearly six million patients in the United States and Israel.

1.What caused the boy’s death?

A.The doctor’s carelessness. B.The doctor’s poor medical skill.

C.The failure of the computer. D.The incomplete health care system.

2.How did Dr. Gidi Stein react to the boy’s death?

A.He was annoyed and put the blame on the doctor only.

B.He was regretful and tried to prevent similar accidents happening.

C.He was embarrassed and mistook it as a systematic failure.

D.He was confused and detected the mistakes in prescriptions himself.

3.What does Stein want to tell us by mentioning credit cards?

A.Credit cards are available for doctors’ prescriptions.

B.Instructions in using credit cards are offered to users.

C.The boy might have been saved with the technology like credit cards.

D.MedAware’s technology will benefit the patients in Zimbabwe.

4.It can be concluded from the text that ________.

A.MedAware’s technology helps doctors choose right medicine

B.MedAware’s technology checks the prescriptions doctors make out

C.Medical industry worldwide has enjoyed MedAware’s technology

D.The boy? s mother was not to blame for his death during the accident