Read the following article and select the best answer. Article: Why do men die earlier than women? The latest research shows that the reason could be that men's hearts go into rapid decline when they reach middle age. The largest study of the effects of aging on the heart has found that women's longevity may be linked to the fact that their hearts do not lose their pumping power with age. "We have found that the power of the male heart falls by 20-25 percent between 18 and 70 years of age," "Within the heart there are millions of cells that enable it to beat. Between the ages of 20 and 70 , one-third of those cells die and are not replaced in men," . What surprises scientists is that the female heart sees very little loss of these cells. "This gender difference might just explain why women live longer than men," said Goldspink. The team has yet to find why aging takes a greater toll on the male heart, said Goldspink.. The good news is that men can improve the health of their heart with regular exercise. Question: According to the passage, the UK scientists have known that _ . - women have more cells than men when they are born - women can replace the cells that enable the heart to beat - the female heart loses few of the cells with age - the female heart never loses the pumping power with age
the female heart loses few of the cells with age

Read the following article and select the best answer. Article: Why do our eyes open wide when we feel fear? And why do our eyes become narrow when we express disgust ? According to a new research, it has something to do with survival. In a recently published paper, researchers concluded that expressions of fear and disgust changed the way human eyes gather and focus light. They argued that these changes were the result of evolutionary development and were intended to help humans survive, or at least discover, very different dangers. In order to test their hypothesis ,researchers examined two dozen volunteer college students with standard eye-exam equipment, and asked them to show expressions of fear and dislike. It was found that when the students widened their eyes, more light was admitted and their field of vision was expanded. When they wrinkled their noses in disgust, their eyes narrowed. This had the effect of blocking out more light but focusing on a specific point. Although some scientists have admitted that emotional expressions are intended primarily to communicate information, expressions of fear and disgust seem to perform different visual functions. "Eye widening may help to find a potential danger that requires much attention. And this would agree with the hypothesized function of fear," said researchers. "On the other hand, eye narrowing may help to distinguish and avoid different kinds of dangers, such as disease carriers and dirty foods. And this would agree with the hypothesized function of disgust." These findings supported naturalist Charles Darwin's view that expressions are not necessarily for communication and are not arbitrary ."If our expressions were arbitrary, they would show little cross-cultural relationship." researchers said. "But actually, our expressions probably have some universal functional principles." Question: According to the text,which of the following expresses the correct connection? - Fear - eye widening - more light - a coming danger. - Fear - eye narrowing - less light - a specific danger. - Disgust - eye narrowing - less light - a coming danger. - Disgust - eye widening- more light - a specific danger.
Fear - eye widening - more light - a coming danger.

Q: Read the following article and select the best answer. Article: Which is sillier: denying we ever went to the moon or trying to convince the true nonbelievers? Once upon a time - July 20, 1969, to be specific - two men got out of their little spaceship and wandered around on the moon for a while.Ten more men walked on the moon over the next three and a half years. Unfortunately, not quite.A fair number of Americans think that this whole business of moon landings really isa fairy tale.They believe that the landings were a big hoax staged in the Mojave Desert, to convince everyone that U.S.technology was the "best" in the whole wide world. Which is the harder thing to do: Send men to the moon or make believe we did? The fact is the physics behind sending people to the moon is simple.You can do it with computers whose entire memory capacities can now fit on chips the size of postage stamps and that cost about as much as, well, a postage stamp.I know you can because we did. However, last fall NASA considered spending $15,000 on a public-relations campaign to convince the unimpressed that Americans had in fact gone to the moon.That idea was mostly a reaction to a Fox television program, first aired in February 2001, that claimed to expose the hoax.The show's creator is a publicity hound who has lived up to the name in more ways than one by hounding Buzz Aldrin, the second man on the moon.Mr.X (as I will call him, thereby denying him the joyous sight of his name in print) recently followed Buzz Aldrin around and called him "a thief, liar and coward" until the 72-year-old astronaut finally lost it and hit the 37-year-old Mr.X in the face. Anyway, NASA's publicity campaign began to slow down.The nonbelievers took the campaign as NASA's effort to hide something while the believers said that $15,000 to convince people that the world was round -- I mean, that we had gone to the moon -- was simply a waste of money.(Actually, the $15,000 was supposed to pay for an article by James E.Oberg, an astronomy writer who, with Aldrin, has contributed to Scientific American.) If NASA... Question: The tone of the article is _ . - angry - conversational - humorous - matter-of-fact
A: humorous

Read the following article and select the best answer. Article: Egyptian researchers believe they have recognized the mummy of Hatshepsut, the most famous queen to rule ancient Egypt, found in an average tomb in Egypt's Valley of the Kings. Researchers said the mummy was one of two females found in 1903 in a small tomb believed to be that of Hatshepsut's nurse, Sitre In. In fact, there has been the idea over the years that one of the mummies may be that of the queen, who ruled from between 1503 and 1482 BC - at the height of ancient prefix = st1 /Egypt's power. The decisive truth-telling fact was a tooth in a wooden box marked with the queen's name, Hawass said. The box was found in 1881 in a hiding place of royal mummies collected and hidden away at the Deir al-Bahari temple about 1,000 metres away from the tomb. Checking all the mummies which might be Hatshepsut's, Yehya Zakariya, a medicine professor, found that the tooth was a perfect fit in a hole in the upper jaw of one of the two females, a fat woman believed to have suffered from cancer and diabetes. "The recognition of the tooth with the jaw can show this is Hatshepsut," Hawass said. "A tooth is like a fingerprint." Another researcher Elizabeth Thomas _ many years ago that one of the mummies was Hatshepsut's because how the right arm was put over the woman's chest suggested royalty . It was guessed that the mummy might have been hidden in the tomb for safekeeping because her stepson and successor , Tuthmosis III, tried to wipe out her memory. Hatshepsut stole the power from her young stepson. After her death, records were destroyed and her body was dug out. Question: When they found the box, people knew _ . - where Hatshepsut was buried - why Hatshepsut's body was lost - the tooth was Hatshepsut's - Hatshepsut's tomb was average
the tooth was Hatshepsut's