Question: WASHINGTON -- Patients with HIV, the virus that causes AIDS, often develop vitamin deficiencies . A new study has found that giving these patients a multivitamin with a mineral supplement helps to fight the disease and slows the disease's progression. Sub-Saharan Africa has always been the center of the AIDS. In Botswana, despite aggressive prevention campaigns, one out of every four adults is infected with HIV. Professor Marianna Baum based her latest research there. Baum recruited almost 900 newly infected adults who had not yet received the anti-AIDS drugs that target the virus. These adults were then divided into groups that randomly received different combinations of vitamins B, C and E, the mineral selenium or a placebo . Most patients with HIV become deficient in these vitamins, which help improve immunity . Baum said she initially thought the multivitamins alone or selenium alone would be effective in strengthening the immune system, but found that incorrect. "We were surprised to find that only the combination was effective," said Baum. Research shows that when people with HIV receive anti-retroviral drugs shortly after infection, they can remain healthy and are less likely to pass the virus to others. For many countries, however, the cost of these anti-AIDS drugs is still prohibitive. Baum said the vitamin and mineral combination treatment should help low income countries better control the virus. "A simple multivitamin supplementation with selenium provided early in HIV disease can actually slow the HIV disease progression and it is safe. It is low cost and it should be provided very early in HIV infection," said Baum. Baum said the supplements are not meant to replace anti-retroviral therapy, but can help those who cannot obtain the drugs. Dr. Anthony Fauci, a world famous expert on AIDS, disagrees. "I haven't read the paper, but having taken care of HIV-infected individuals for three decades, I would doubt that vitamins are going to have a major effect... Which of the statements is possibly supported by Dr. Anthony Fauci? A) The finding is great news for low income patients. B) Vitamins will have a great impact on stopping HIV . C) Anti-retroviral treatment is effective to stop HIV. D) Vitamins should be used early in HIV infection.
Answer: C

Question: I log onto a computer at the doctor's office to say I have arrived and then wait until a voice calls me into the examination room. There, a robotic nurse directs me onto a device and then takes my blood pressure. Some time later, in steps the doctor, who is also a robot. He notes down my symptoms and gives me a prescription . I pay for my visit using a credit card machine and return home without having met another human being. When I call my dentist's office and actually get a human being on the line, I am thrilled. And when I see the introduction of yet more self-service checkout stations at the grocery store, I feel like shouting, "When it comes to cashiers, make mine human, please!" After all, human cashiers sometimes give you a store coupon for items you are buying. Even more than that, real-life cashiers often take an interest in particularly cute children, which can brighten a young mother's day. A cashier may also show compassion for an elderly person struggling to get that last penny out of her purse. What technological device would do any of this? I don't want to go back to the Stone Age, but I'm also worried about a world run by machines. Sometimes when you're chatting with someone, you discover things you need to know. Maybe a receptionist needs prayers said for a sick child. Maybe a salesperson can offer a bit of encouragement to a customer who is feeling tired. Machines can be efficient and cost-effective and they often get the job done just fine. But they lack an element so important to everyday life. Call it the spirit, the soul or the heart. It is something no machine will ever have. It is being human that prompts us to smile at others, which may be what they need at that moment. What's the author's attitude towards machines? A) He wishes one day they would come to life. B) He is absolutely against their existence in his life. C) He doesn't like they get involved in his life too much. D) He is afraid they would take the place of human beings.
Answer: C

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