Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make. What Sir Francis Bacon said was right, but people didn't believe him until _ . A) late in the 19th century B) early in the 20th century C) three years ago D) late in the 20th century
D
It took some time for spring to arrive but now it's here that UK's gardens are enjoying it. Many flowers that would usually be over by now are still at their best. Here are some of the best gardens right now. Kew Gardens, London The rock garden is one of the places to head for at Kew right now. It will be at its peak in the days ahead. The garden has waterfalls and streams over the land, and many plants and flower buds are all at their best. Equally those who can not be missed are the flowering cherry trees. Open daily 9:30 am-6:30 pm, adults PS16, children free. Wentworth Castle Gardens, near Barnsley A yellow carpet surrounds Wentworth Castle at the moment, as the daffodils are still in full bloom. Another wonderful spot is the Victorian flower garden, created from an old bowling green in the 19th century. Open daily 10:00 am- 5:00 pm, adults PS5.50, children PS2.95, family PS12.50. Harlow Carr, Harrogate The earlier bad weather means many daffodil varieties were extremely late, but at Harlow Car plenty of the plants can be found at the moment. The garden also has one of the longest streamside plantings in the country. Open daily 9:30 am-6:00 pm, adults PS8.50, children PS4.25, family PS20.70. Bon Stewart, Newtownards There are great smells as well as great sights at Bon Stewart: Lady Londonderry, who created the garden in the 1920s and 1930s, love plants with a sweet smell. So go up to rhododendron hill. It's one of the best places here right now. Open daily 10:00 am-6:00 pm, adults PS6.63, children PS3.31, family PS16.00. You can probably enjoy the flowers beside the stream in _ . A) Kew Gardens and Bon Stewart B) Harlow Carr and Kew Gardens C) Bon Stewart and Harlow Carr D) Wentworth Castle Gardens and Bon Stewart
B
Q: A twisted sense of humor and a strong voice cast make "Open Season" fun for kids and adults. It's a great start for Sony's animation studio. Boog is a full-grown grizzly bear that has been raised among humans by park ranger Beth. He has a warm place to live, all the food he wants, and is safe from hunters. However, when he crosses paths with the spastic mule deer Elliot, all that changes. Thanks to a series of misunderstandings, everyone believes Boog is dangerous and out of control. Beth is forced to release him back into the wild. Once Boog finds himself in the great outdoors, he has no idea what to do. He gets lost, can't find food, and is attacked by unfriendly forest cutters. Boog is forced to rely on the idiotic Elliot to help him find his way back to civilization . But can they _ before open season begins for hunting? The movie also has a really strong voice cast. Martin Lawrence voices Boog, and his attitude and persona perfectly fit the bear. The same goes for Aston Kutcher as Elliot. Even if you can't stand him in the real world, you'll be surprised how well he brings the annoying deer to life in the movie. The animation in "Open Season" is also excellent. The characters are quite cartoonish, but the hair is realistic looking and the movements are fantastic. The body language adds a lot to the performances of the characters. What's the key factor that the Boog need to survive himself in the wild? A) He wants to seek a comfortable settlement. B) It's thought that the Boog is beyond control. C) The Boog is required to find enough food. D) The Boog is eager to make new friends.
A: B
(Question)
Former South African president Nelson Mandela died on 6 December 2013 Beijing time .President Jacob Zuma announced it in a televised speech to the nation. He was 95. Those 95 years were remarkable. At the age of seven, he entered a local school, where he was given the name "Nelson", after Admiral Horatio Nelson of the Royal Navy, by a teacher who had difficulty in pronouncing his African 'name. That name, Rolihlahla , means "troublemaker" . In 1927, when Mandela was nine, he decided to become a lawyer, influenced by the cases that came on his father. In 1942 Mandela entered politics by joining the African National Congress (ANC), South Africa's major liberation movement and today the country's ruling party. It was during this time that he and a small group of mainly young members of the ANC got down to a task transforming the party into a mass movement. In 1952, he was charged and brought to trial for his role in the campaign of fighting against Unjust Laws and given a prison sentence. The 1950s turned out to be a time of hardship and suffering for Mandela-he was banned, arrested and imprisoned. While in prison, Mandela studied by correspondence with the University of London, earning a Bachelor of Law degree. He never faced with his teachers, but his name was familiar to all the teachers by means of his writing letters. After spending 27 years in prison, Mandela became South Africa's first democratically elected president in 1994. He united a fearful country, bringing together blacks and whites in harmony When South Africa was living through violent and troubled times. After serving a five year term as president of the country, he retired from public life, though not from the public eye. He is the greatest son of the nation and a great father of his people. More than l, 115 awards and honors, even the Nobel Peace Prize had been on him. More than 85 streets, roads, avenues, bridges, highways had been named after Mandela. How old was Mandela when he retired? A) 95. B) 91. C) 81. D) 76.
(Answer)
C