Read the article and select the best answer. Article: The Mississippi is the major river system in the United States. The Yangtze is China's longest river. Although a world apart, the two waterways share conservation concerns that provide a cultural bridge between students in the United States and China, as well as from around the world. The Mississippi flows almost 3,800 kilometers from a small lake in Minnesota, gathering the waters of 250 other rivers and streams before reaching the Gulf of Mexico. In mid-May, as spring flowers began to open, about 41 students from a dozen colleges, mostly in the Midwest, explored a section of the river in Wisconsin and Iowa, to learn about the environment, and each other. The students, from the U.S., China and around the world, came to join the River Spirit Exchange program. The cross-cultural educational experience - set up by the University of Wisconsin, Madison-based Environment and Public Health Network for Chinese Students - focuses on the Mississippi and China's longest river, the Yangtze. This three day get-together featured story-telling, hiking, camping and canoeing, all part of a larger lesson about conservation projects that can be used on both the Yangtze and Mississippi. While the students learned about the problems challenging the Mississippi and Yangtze, Jeb Barzen, a wildlife biologist, explained they should also learn about the importance of bridging each other's culture. The president of the Environment and Public Health Network for Chinese Students, Xiaojun Lu, said the Mississippi and Yangtze Rivers are uniting these students from opposite ends of the earth. Organizers say the success and spirit of this first gathering of students will lead to other trips, including one down the Yangtze. Question: Where is the passage most probably taken from? Options: A: A personal diary B: A news report C: An official document D: An advertisement
B

(Question)
Read the article and select the best answer. Article: When his book Little Princes began, Conor Grennan was planning a year-long trip around the globe, a journey that began with a three-month volunteer service at the Little Princess Children's Home, an orphanage in Nepal. Arriving there, Conor was immediately welcomed by all the children even though he had no previous experience in working with children. He quickly grew to love the job. But it wasn't long before Conor came to learn that the children were not orphans at all--they were actually children who had been separated from their parents by a child trafficker . This realization turned Conor's global journey into a strong desire to try to find a way to reunite these children with their families. As a part of his efforts, Conor did a great amount of work when he was back in America. He started up a nonprofit organization called Next Generation Nepal (NGN), raising funds in order to buy a house in Nepal for another children's home. Then, back in Nepal, he began a life-changing trip into remote villages. It is really amazing to read about Conor communicating with the children and to read his descriptions of each of them. He made me truly care about the kids. I wanted them to be able to reunite with their families, too! Unfortunately, this was simply not possible for some of the children. But there were some lucky ones. Jagrit, for example, had thought for years that both his parents were dead. So, Conor was surprised when he visited Jagrifs village and was introduced to the boy's father! Conor successfully found many of the families of the children and also found his future wife while in Nepal. Question: What do we know about Little Princess Children's Home? Options: A: Many children ended there due to illegal trade. B: The children in it are all orphans. C: It is a worldwide profitable organization. D: It has many branches all over Nepal.
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A

Read the article and select the best answer. Article: Scientist Says 'No' to Human Cloning "I've never met a human worth cloning," says cloning expert Mark Westhusin from his lab at Texas A&M University. "It's a stupid endeavor." That's an interesting choice of adjective, coming from a man who has spent millions of dollars trying to clone a 13-year-old dog named Missy. So far, he and his team have not succeeded, though they have cloned two cows and a cat. They just might succeed in cloning Missy soon -- or perhaps not for another five years. Westhusin's experience with cloning animals leaves him upset by all this talk of human cloning. In three years of work on the Missy project, using hundreds upon hundreds of dog's eggs, the A&M team has produced only a dozen or so embryos carrying Missy's DNA. None have survived the transfer to a surrogate mother. The wastage of eggs and the many spontaneously aborted(,) fetuses may be acceptable when you're dealing with cats or bulls, he argues, but not with humans. "Cloning is incredibly inefficient, and also dangerous," he says. Even so, dog cloning is a commercial opportunity, with a nice research payoff. Ever since Dolly the sheep was cloned in 1997, Westhusin's phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses. "A lot of people want to clone pets, especially if the price is right," says Westhusin. Cost is no obstacle for Missy's mysterious billionaire owner; he's put up $3.7 million so far to fund A&M's research. Contrary to some media reports, Missy is not dead. The owner wants a twin to carry on Missy's fine qualities after she does die. The prototype(;)is, by all accounts, athletic, good-natured and supersmart. Missy's master does not expect an exact copy of her. He knows her clone may not have her temperament(, ). In a statement of purpose, Missy's owner and the A&M team say they are "both looking forward to studying the ways that her clones differ from Missy." Besides cloning a great dog, the project may contribute insight into the old question of nature vs.... Question: By cloning Missy, Mark Westhusin hopes to _ . Options: A: study the possibility of cloning humans B: search for ways to modify its temperament C: find out the differences between Missy and its clones D: examine the reproductive system of the dog species
C