(Q).
I'm taking a test and have to guess the right answer to the question after the article. Article: Alan Izhar-Bodner, an Israeli inventor, has developed a swimming suit for divers to breathe underwater without carrying heavy oxygen tanks. His suit makes use of the air that is dissolved in water, just like fish do. The system uses the Henry Law which states that the amount of gas that can be dissolved in a liquid is proportional to the pressure on the liquid. Raise the pressure ---more gas can be dissolved in the liquid. Decrease the pressure --- less gas dissolved in the liquid releases the gas. This is exactly what happens when you open a can of soda; carbon dioxide gas is dissolved in the liquid and is under pressure in the can. Open the can, releasing the pressure, and the gas fizzes out. Bodner's System obviously uses a special machine to lower pressure in part of a small amount of seawater taken into the system; dissolved gas is taken out. The patent reads: A self-contained open-circuit breathing instrument for use within a body of water naturally containing dissolved air. The instrument is adapted to provide breathable air. The instrument contains an inlet for taking out a quantity of water from the body of water. It further contains a separator for separating the dissolved air from the quantity of water, thus gaining the breathable air. The instrument further contains an outlet for expelling the separated water back into the body of water, and another outlet for removing the breathable air and supplying it for breathing. The air is supplied so as to enable it to be expelled back into the body of water after it has been breathed . Human beings have been thinking about how to breathe underwater since they started swimming. This long-held desire plays an important part in one of the first great science fiction novels, Jules Verne's 20,000 Leagues Under the Sea. Question: It can be inferred from the passage that _ . Options: A: the less pressure it is, the less carbon dioxide gas is dissolved in the liquid B: the deeper one dives into the ocean, the less gas is dissolved in the water C: the greater pressure it is, the more carbon dioxide gas is dissolved in the liquid D: the deeper one dives into the ocean, the more gas is dissolved in the water
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D

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I'm taking a test and have to guess the right answer to the question after the article. Article: Magic is believed to have begun with the Egyptians, in 1700 BC. A magician named Dedi of Dedsnefu was reported to have performed for the pharaoh, or the king. He was also known to have entertained the slaves who built the pyramids. The "Cups and Balls" trick which he was particularly good at is still performed by magicians all over the world today. The ancient Greeks and Romans were also fascinated by the idea of magic. Actually, one of their main interests was the art of deception . This explains why at that time the priests even built magic devices into their temples. These devices made it possible for doors to open by themselves and wine to flow magically out of statues' mouths. This was done mainly to convince people that the priests were powerful. Magic, however, was not well accepted before the 1800s. Magicians were thought of as freaks and were only allowed to perform in a circus . It was in the 19th century that the magician Robert Houdin came along and changed people's views and attitudes about magic. It was also because of Robert Houdin that many magicians were able to add Dr. or MD to their names. Today magicians try hard to find new ways to show their practiced skills. Magic is now entertainment for families all over the world. Question: Which of the following statements is true? Options: A: Magic began about 3,700 years ago. B: Dedi of Dedsnefu performed magic for kings only. C: Robert Houdin was the first magician to perform magic. D: The "Cups and Balls" trick has been performed for about 1,700 years.
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A

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I'm taking a test and have to guess the right answer to the question after the article. Article: President Abraham Lincoln often visited hospitals to talk with wounded soldiers during the Civil War.Once,Lincoln went over to the bedside of a young dying soldier. "Is there anything I can do for you?"asked the President. The soldier obviously didn't recognize Lincoln, and with some effort he was able to whisper, "Would you please write a letter to my mother?" So the President carefully began writing down the soldier's words,"My dearest mother, I was badly hurt while doing my duty. I'm afraid I'm not going to recover. Don't _ too much for me, please. Kiss my sister Mary for me.May God bless you and Father." The soldier was too weak to continue, so Lincoln signed the letter for him and added, "Written for your son by Abraham Lincoln."The young man asked to see the note and was astonished when he discovered who had written it."Are you really the President?"he asked. "Yes, I am,"replied Lincoln quietly.Then he asked if there was anything else he could do."Would you please hold my hand?"asked the soldier."It will help to see me through to the end." In the quiet room, the tall gaunt President took the soldier's hand and spoke warm words of encouragement until death came. Question: According to the passage, which of the following is TRUE? Options: A: The dying soldier was filled with love. B: Lincoln only signed his name in the letter instead of the soldier's. C: The soldier was the only child in his family. D: Lincoln often wrote letters for the wounded.
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A