Article: On June 5, 1981 the Centers for Disease Control in Atlanta, U.S. announced the presence of a rare, infectious disease in five American homosexuals . Soon doctors were finding similar cases all over the country and the world. The AIDS epidemic had officially begun. By 1983 it was clear that AIDS had spread around the world. More than twenty years later, AIDS has left twenty-six million dead and another forty million infected. AIDS has become the worst medical disaster ever experienced by mankind. Hundreds of young people between the ages of 20 and 45 died each week during the early years of the U.S. AIDS. More than 600,000 cases of AIDS have been reported since 1981 in the United States, and it is estimated that there may be as many as 900,000 Americans infected with HIV. Though the rate of HIV infections continues to increase in the United States, the number of AIDS cases has fallen sharply since 1996, when antiretroviral drugs came onto the market. Unfortunately, the AIDS epidemic continues today in Africa and much of Asia, where antiretroviral treatment is not available and health care is far from enough. AIDS is the fourth leading cause of death worldwide, and the No. 1 cause of death due to infectious disease. HIV, the virus that causes AIDS, was first separated in 1983 by a team at the Pasteur Institute in Paris. That discovery made it possible to develop a test for AIDS and trace back to victims who may have died before doctors were aware of the disease. However, scientists still don't know exactly how and where AIDS started. Finding the source of AIDS could be important in developing a vaccine and be important in mapping the future course of the epidemic. Question: Which areas are the most worrying places where AIDS spreads quickly? Yes or no, is the answer "Africa."?
No

(Question)
Article: It's impolite to spit out the first bite of your dinner. But to a type of Australian snake, this rude behavior is a matter of life and death. The snake, called a floodplain death adder , eats two types of frogs that are hard to stomach. The frogs produce chemicals to defend them from predators . One of these species, the Dahl's frog, can kill a snake that tries to eat it. The other species, the marbled frog, is less dangerous but still tough to eat. When attacked, _ produces a glue like substance. Leaves and branches get caught up in this material, making a big sticky mess that gets in the way of anything trying to swallow it. A marbled frog can even get stuck on the head of an attacking snake. Both frogs have good defense methods. But the floodplain death adder knows how to get around each of them. Floodplain death adders quickly strike these frogs, using their poisonous teeth to inject poison. But then, instead of swallowing their dinner immediately, the snakes sit back and wait for their preys to become safe to eat. That's because both the Dahl's frog's protective toxin and the marbled frog's glue break down over time. After a while, the frog toxin is no longer poisonous and the glue is no longer sticky. The two substances break down at different rates, and floodplain death adders seem to know the difference, And adder waits for a different length of time depending on the species of frog it just struck. The stickiness of the marbled frog glue decreased by as much as two-thirds after just 10 minutes. And that's just about how long an adder waits before eating a marbled frog. On the other hand, the snakes wait for about 40 minutes before eating a Dahl's frog. That's enough time for the frog's toxin to break down into harmless substances. But even a quick strike gives a taste of the Dahl frog's toxin. After striking such a frog, a floodplain death adder thrashes around and lies on its back with its mouth open, It's like the snake has just had a... Question: What's the floodplain death adder's method to make the frogs safe to eat ? Yes or no, is the answer "They inject poison on the preys and wait for the breaking down of their toxin and glue before eating them"?
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No

Ques: Article: How many times do you have to fail at something in order to succeed? Did you know that Thomas Edison failed 10,000 times while trying to invent the light bulb? He certainly had a "learn and do" attitude! He was able to turn each failed experiment into a successful way to invent the light bulb. So what can we learn from this? You can adopt the "fail forward" strategy too. In reality, none of us are failures. It's true that we will experience times of defeat, problems, and disasters, but remember, each one of us is meant to succeed in life. However, we must choose our fate. Henry David Thoreau said, "Men are born to succeed, not to fail." We can never be forced into having a happy and successful life. Whether or not you experience success or failure is completely controlled by what you think and do. You are the only one who can choose the thoughts that will keep you from achieving the abundant life and joy that you are meant to have. No matter how difficult things may seem, say to yourself, "I choose to be a happy and successful person." Why do some people get what they want and others fail? I believe that getting what you desire in life takes planning, and it doesn't just happen by luck. So how do we plan for success? It has been proven that successful people do things more differently than unsuccessful people. They recognize the patterns of success and follow them; one of those patterns is planning. They plan what they think and do, which sets them apart. They know exactly what they desire, have an intelligent plan for getting it, and then work their plan. They know what success will cost them in terms of time, energy, and results, and they devote the right resources toward making their plans happen. Question: What Henry David Thoreau said implies that _ . Yes or no, is the answer "everyone is able to be a success"?
Ans: No

Question: Article: Safeburn Planning a home demands great care. The fireplace should be distinctive and elegant , with a fire that looks like a fire, giving your family the warmth and protection they need.Every year 7,000 people die in fires in Britain, and hundreds of them are little children. Thousands more are disfigured for life. When you choose a fire, choose Safeburn. It gives you the atmosphere of home comfort you are looking for, and sets your mind at rest. Caithness Pride Caithness Pride. The ninth Duke of Caithness would only drink the best whisky. So he built his own private still, in the heart of the Highlands, with the fresh water running in the stream nearby. When we came into possession of the still, we paid the Duke's heirs a lot of money for it. But it was worth it. After all, what was good for the Duke is too good to be kept a secret. Question: In most British houses, you won't miss seeing fireplaces in their sitting rooms, which suggests in British people's family life fire is very _ . Yes or no, is the answer "important"?
Answer:
No