Read the following article and select the best answer. Article: All the 6,000 medals for the 2008 Olympic Games have arrived in the capital from the Shanhai Mint,ready for their debut on August 8.For the,first time in Olympic history,the medals for the Beijing Games mix metal and jade. The technology of inlaying jade into metal can date back to the Han Dynasty almost 2,000 years ago.It is not easy to bond jade perfectly with metal.The key to the process lies in the inner layer of the metal and the groove of the jade ring.A seal ring is put between the inner layer and the groove to join the metal and jade together. Jade rings used for casting Olympic medals have been subjected to strict quality controls,and those not up to the standard have been thrown away. To make use of those jade rings that do meet the quality criteria,metal medals were produced to fit the jade tings,and more than ten different sizes of seal rings were designed. To avoiding any loosening of the jade rings due to aging of the seals,glue has been used in casting the;Olympic medals,which is a painstaking manual process. Experts from the International Olympic Committee(IOC)were concerned about the risk of fragility when the jade ring design was proposed.The IOC required that jade rings should be strong enough to withstand a 2-meter drop test.The Shanghai Mint raised that standard to 3- meters.Medals call survive a 3-meter drop test with only minor cracks on the jade rings. Question: We can infer from the passage that _ . - China produces more jade than any other country in the world - the organizers of 2008 Olympic Games want to save some rare medals - the medals mixing metal and jade prove to be of high quality through destructive experiments - the medals will be damaged when dropped from a height of two meters
the medals mixing metal and jade prove to be of high quality through destructive experiments

Read the following article and select the best answer. Article: Albert Einstein had a great effect on science and history. An American university president once said that Einstein had made a new outlook, a new view of the universe. It may be some time before the average mind understands fully the identity of time and space and so on--but even ordinary man now understand that the universe is something larger than ever thought before. By 1914 young Einstein had been world-famous. He accepted the offer to become a professor at the Prussian Academy of Science in Berlin. He had few duties, little teaching and unlimited chances for study, but soon his peace and quiet life were broken by World War I. Einstein hated fighting and killing. The great suffering of war affected him deeply, and he sat unhappily in his office doing little. He lost interest in his research. Only when peace came in 1918 was he able to get back to work. In the year following World War I honors were increasingly put on him. He became head of the Kaiser Whihem Institute of Theoretical Physics. But he himself refused the effort to put him in a position far above other people. He was well known for his humble manners. He often said that his success would certainly have been achieved by others if he had never lived. In 1921 he won the Nobel Prize, and he was honored in Germany until the rise of Nazism when he was driven from Germany because he was a Jew.www.ks5u.com Question: In the years following the First World War, _ . - Einstein's theory was soon accepted even by ordinary people - more and more honors went to Einstein - Einstein almost had no chances for his research - Einstein was not honored in Germany until the rise of Nazism
more and more honors went to Einstein

Q: Read the following article and select the best answer. Article: Butterfly gardens can be grown throughout the United States.There is a wide variety of both butterflyattracting (nectar) plants and host plants covering climate zones throughout the country.Butterfly gardens can range in size from a few containers placed in a sunny spot to several acres. Nectarproducing plants will attract butterflies to your garden.In order to support a full butterfly life cycle,host plants (for laying eggs and used as a caterpillar food source) must also be present. Throughout the country,the general requirements for butterfly gardening are the same:full sun,nectar source plants,larval host plants,a pesticidefree environment,and knowledge of the local butterfly species.Many butterflyattracting plants are natives and require little attention,as they are naturally adapted to the region in which they live. Butterfly gardens are best planted in spring with younger plants or in fall with mature plants that will become dormant quickly and reemerge in spring.It is best not to plant in the heat of summer or the cold of winter. One of the most common mistakes in butterfly gardening is planting only one nectar source.Adult butterflies have a very short lifespan.Planting a variety of nectar sources will encourage more butterflies to visit the garden.Planting an adequate supply of host plants gives butterflies a place to lay their eggs,which will successfully hatch and result in butterflies that will continue to visit the garden. Butterflies typically lay their eggs in late spring and hatch 3-6 days after they are laid.It takes 3-4 weeks for a caterpillar to pupate and 9-14 days to emerge as an adult. Good resources for learning more about butterfly gardening include zoos,botanical gardens,butterfly houses,garden centers and nurseries,libraries and the Internet.There are many good websites dedicated to butterflies and butterfly gardening. Question: Which seasons are suitable for planting butterfly gardens? - Spring and summer. - Summer and fall. - Summer and winter. - Spring and fall.
A: Spring and fall.

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Read the following article and select the best answer. Article: Peng Liyuan, China's first lady, who has accompanied her husband to the United States, is no stranger to being in the spotlight. She has been praised by both mainland and international media for her sense of fashion on earlier state visits. Following her arrival in the U.S., she is set for a much-anticipated fashion face-off with her fellow, U.S. first lady Michelle Obama later this week. Here we take a look at four key differences between the two fashion icons. 1 Backgrounds Peng Liyuan Peng, a Yuncheng county, Shandong native, joined the People's Liberation Army when she was 18. She was one of the first people on the mainland to obtain a master's degree in ethnic music at the China Conservatory of Music. Her vocal talents made her a superstar as an army soprano , and she has given many singing performances at home and abroad. Michelle Obama Michelle grew up with her older brother, Craig, in Chicago. Her father was a water plant operator, and her mother was a full-time housewife until her daughter went to high school. She went to state school, and later graduated from Princeton University with a bachelor's degree in sociology. She then attended Harvard Law School in 1988, where she earned a doctorate in law. 2 Professions Peng Liyuan Aside from being the first lady of China and a singer, Peng is also the president of the People's Liberation Army's Academy of Art College. She has since stepped down from public performances, but continues with her charity work. Michelle Obama After working as a lawyer, Michelle began to work in public service and was the associate dean at the University of Chicago. She then became vice-president for community and external affairs at the University of Chicago Medical Center before her husband's inauguration. 3 Campaigns Peng Liyuan The World Health Organization appointed Peng as a goodwill ambassador in its campaign against tuberculosis and HIV/AIDS in 2012. In 2014, UNESCO named her as a special envoy to promote education for girls and women. She has also joined Bill Gates,... Question: From her clothing we can learn that Michelle Obama . - likes to wear tailored clothing most - prefers to wear clothes of famous brands - likes to wear dresses made by native designers - has a fashionable dress style consistent with her status
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likes to wear dresses made by native designers