I'm taking a test and have to guess the right answer to the question after the article. Article: If you look at the night sky, you'll often see stars moving very quickly. In fact, they move much more quickly than they should according to their size and the laws of physics. Scientists do not completely understand why the speed of these stars is so high. But many believe the reason is that much of the universe is made of something called "dark matter". Groups of stars called galaxies, such as the Milky Way, might even be made up of 90 percent dark matter. How much something weighs depends on where it is. The same object weighs only half as much on Mars as it does on Earth and almost three times as much on Jupiter. So scientists prefer to talk about the mass of something rather than how much it weighs, because mass does not change. They can work out the mass of galaxies by measuring the distance between them and the speed they move at. Recently, Jorge Penarrubia, a senior academic at Edinburgh University, UK, and his team discovered something interesting: The mass of the Milky Way is only half as much as the mass of another nearby galaxy, Andromeda. This seems strange, and dark matter may explain why. Finding out more about dark matter could help us understand how the universe began, but this is not easy. Lots of scientists with different types of expert knowledge are working on the problem. We can't see dark matter, it's very difficult to measure and we can't find out its mass. Unlike stars, dark matter doesn't produce or reflect light. But we can make a good guess that it is there because of the way things move and the way light bends. Experts now think dark matter may be very different from the matter that we find on Earth. There may also be five times as much dark matter in the universe as ordinary matter. Question: Something that weighs 15kg on Earth weighs about _ on Mars and _ on Jupiter. Options: A: 7.5 kg; 45 kg B: 30 kg; 45 kg C: 45 kg; 7.5 kg D: 5 kg; 30 kg
A
(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: Desks and chairs remained in the classroom, but the lovely children have already left us forever. The handprints left on the walls tell us their fear and despair . Ninety-nine pupils were killed in a flood in Heilongjiang Province on June 10, 2005. They were swept away by violent waters while having class. It was a natural disaster. But the destruction may have been less serious if students had known what to do to save themselves. Some witnesses said most children did nothing but cry when they found no escape route. Under the instruction of teachers, some pupils caught desks and chairs that were floating and survived. But others were so scared that they could not follow what the teachers said. Everyone knows that people should mend the fold before the sheep are lost. Preparation for disasters is very important. Schools should be responsible for teaching students survival skills for times of danger. So survival skills and exercises are as important as textbook knowledge. Japan has set a good example to us. Even though earthquakes and tsunamis often affect the country, there are usually few deaths and injuries. Survival exercises are held in every Japanese school every year. With different kinds of competitions and training, schools help the students be aware and capable of surviving disasters. On June 16, 2005, a public safety museum opened in Beijing. People can experience disaster like fires and earthquakes, and learn survival skills. Some Beijing teenagers are required to visit the museum. If there were more similar activities in China, further tragedies may be avoided. Question: What's the author's attitude toward the pupils who suffered from the flood? Options: A: Regretful B: Amused C: Questioning D: Objective
(Answer)
A
Ques:I'm taking a test and have to guess the right answer to the question after the article. Article: The surgeries went well, and not long afterwards, my sister and I were allowed to go in to visit. Dad was in a great deal of pain but, again, all he could talk about was Mom, who donated her kidney to him. Was she okay? How was she feeling? As they were wheeling Mom out of the recovery room, they rolled her into a separate place in Dad's to visit him. It was like a dream to see both our parents hooked up to IVs and machines and trying to talk to each other through tears. The nurses allowed us to present the diamond ring, which was purchased by Dad before the surgery, to Mom so that Dad could watch her open it. Everybody was crying, even the nurses. As I stood with digital camera in hand, I tried to keep the presence of mind to document the moment. My dad was having a hard time fighting back emotion, and suddenly my parents reached out to hold each other's hands. In my nearly 35 years of existence, I'd never seen my parents do that, and I was absorbed in. I snapped a picture and later rushed home to make sure I'd captured that enormous, life-defining moment. _ . After so many years of quarrels, it was apparent to me that they finally understood how much each loved the other actually . It's as if the transplant healed our whole family. Dad is far gentler, and he has more patience now. He's not condescending to my mother anymore. Mom, too, has loosened up, since she's not dealing with all that anger. There's a closeness that they didn't have before, and the experience has deepened their faith. For Christmas, my sister and I gave them two framed photos linked together by hooks. The top photo is of their clasped hands on their wedding day, August 7, 1965. It says, "For better or worse, for richer or poorer." The second photo is of that day in the recovery room. Their hands are intertwined and it says, "In sickness and in health, till death do us part." Question: From the story of the author's parents we can conclude that _ . Options: A: Illness is part of daily life. B: Quarrels can't be avoided between parents. C: The relationship between parents affects children greatly. D: Suffering can better people's relationship as well.

Ans:
D