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Article: Pocket Tape-Recorders "Family and Home Magazine" test what's on the market now. 1)Pearlcorder S702 $64 This simple model at the bottom of the Olympus range scored the most points for its excellent quality of recording. Background noise hardly affects the sound and recording from a pocket is perfectly possible, but it doesn't turn off automatically. Tape length: 30 minutes per side. Weight: 240g. 2)Sony M9 $49.95 Small and very good looking, sony's latest offering scored most for appearance. Sounds clear, but there is slight machine noise. The big control buttons are a great improvement on some of the complicated little controls on other tape-recorders. Doesn't switch off automatically but a red light shows if the machine is still running. Tape length: 60 minutes per side. Weight: 195g. 3)Sony M400 $115 Lots of little control buttons that make a noise and are difficult to use . Recording was good but machine noise lost points. Tape counter and automatic switch-off when tape has finished recording or rewinding are useful. Tape length: 60 minutes per side. Weight: 230g. 4)Imperial OEM. MC $29.95 Cheap and simple compared with the rest, but recording was good as long as there was no background noise. Use only its own make of cassette. No light to show it is on; no fast forward button and the record button makes a loud noise. Tape length: 30 minutes per side. Weight: 285g. 5)Philips 585 $80 Handsome and simple to use, but recording is very poor at more than the recommended distance of 5 cm-designed for dictation. No recording light. Tape length: 15 minutes per side. Weight: 220g. Question: If you want a machine which turns off automatically and weighs very little you should choose the   _  . Yes or no, is the answer "Sony M400"?
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No


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Article: In 2009, the Taiwu Elementary School Folk Singers were invited to perform in Belgium, France, Germany, and Luxemburg. In 2011, they were voted as one of the world's top five performance groups by audiences of Japan Broadcasting Corporation's Amazing Voice program. Thinking back the group's first tour in Europe, Camake Valaule, a physical education teacher and the founder of the Taiwu Elementary School Folk Singers, admitted that he felt very nervous. He was worried that the audience would fall asleep since most of the 75-minute performance was a cappella, that is, singing without instrumental sound. Surprisingly, the audience listened with full focus and high spirits. Camake said, "They told me afterward that through our performance, they had a vision of our country, our village, without having to visit it. This experience greatly increased our confidence." According to Camake Valaule, singing traditional ballads has helped students and their parents to re-understand their culture. "It used to be that the only ones who could sing these songs were tribal elders aged between 50 and 60. Now with the children performing the pieces, parents are beginning to ask, 'Why do we not know how to sing these ballads?' Many times nowadays, it is the children who teach the songs to their parents, putting back _ ." Winning international fame, however, was neither the original intention nor the main reason why Camake founded the group in 2006. The most important thing was to make children understand why they sing these songs and to preserve and pass on their culture. Referring to the relocation of Taiwu Elementary School and Taiwu Village following Typhoon Morakot in August 2009, Camake said, "We could not take the forest or our houses in the mountains with us; but we were able to bring our culture along. As long as the children are willing to sing, I will always be there for them, singing with them and leading them to experience the meaning of the ballads." Question: On his first trip to Europe, why did Camake think the audience might fall asleep? Yes or no, is the answer "Most of the performance was not accompanied by any instrument."?
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Article: Can people change their skin color1 without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin color1.     The gene comes in two versions, one of which is found in 99 percent of Europeans. The other is found in 93 to 100 percent of Africans, researchers at Pennsylvania State University report in the latest issue of science.     Scientists have changed the color1 of a dark-striped zebrafish to uniform gold by inserting a version of the pigment gene into a young fish. As with humans, zebrafish skin color1 is determined by pigment cells, which contain melanin  . The number, size and darkness of melanin per pigment cell determine skin color1.     It appears that, like the golden zebrafish, light-skinned Europeans also have a mutation   in the gene for melanin production. This results in less pigmented skin. However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.     Humans acquired dark skin in Africa about 1.5 million years ago to protect bodies from ultra-violet rays of the sun , which can cause skin cancer. But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.     "Asians have the same version of the gene as Africans, so they probably acquired their light skin through the action of some other gene that affects skin color1," said Cheng.     The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin color1 without damaging it like chemical treatment did on Michael Jackson. ks5u Question: Scientists have done an experiment on a dark-striped zebrafish in order to   _  . Yes or no, is the answer "prove the humans' skin color1 is similar to that of zebrafish in its formation"?
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No