Read the article and select the best answer. Article: On Saturday August 12, 2000, during Northern Fleet training exercises in the Barents Sea, the Russian nuclear submarine Kursk sank in about 100 meters of water with some 118 sailors aboard. It's known later that several officers were also aboard, observing the training exercises. The Kursk is lying on the ocean floor in the Barents Sea. The Russian Navy said that it was listing 30 degrees to port. Other sources reported it was listing as much 60 as degrees. According to a Russian newspaper, when the submarine Kursk failed to make contact with the naval command at the right time later that day, Northern Fleet Commander Admiral Vyachesav Popov ordered rescue ships into the area. It took hours to find the submarine, as it didn't launch a marking buoy before sinking. Russian Navy Chief insisted that the submarine Kursk had been involved in a major collision , but a great deal of information shows that this is not true. Up till now, it's believed that an explosion in the torpedo compartment in the nose of the Kursk was the likely cause. Now Russian government officially asked Norway for help in recovering of sailors' bodies first of all, and Norway has agreed to offer all help. But Russian insisted that only Russians work inside the submarine Kursk and that the work last for about 10~18 working days. It is expected to recover only 25~35 bodies from the Kursk. It was not until October 25, when a team of Russian divers entered the submarine Kursk, some 350 feet below the surface, that truth became clear. On November 7, in the morning, owing to the icy and the cold weather, a special rescue meeting held on Murmansk decided to stop the whole bodies recovering operation. Question: From the text we can infer that _ led to the sinking of the submarine Kursk. Options: A: a small fighting with another foreign submarine B: an explosion inside the submarine Kursk C: a great collision inside the submarine Kursk D: an attack from another foreign submarine
B

Read the article and select the best answer. Article: Christmas in Australia is often very hot. Whereas the northern hemisphere is in the middle of winter, Australians are baking in summer heat. It is not unusual to have Christmas Day well into the mid 30 degrees Celsius, or near 100 degrees Fahrenheit. A traditional meal includes a turkey dinner, with ham, and pork. A flaming Christmas plum pudding is added for dessert. In the Australian gold rushes, Christmas puddings often contained a gold nugget. Today a small favor is baked inside. Whoever finds this knows s/he will enjoy good luck. Another treat is Mince Pies. Some Australians and particularly tourists often have their Christmas dinner at midday on a local beach, Bondi Beach in Sydney's Eastern Suburbs attracts thousands of people on Christmas Day. Other families enjoy their day by having a picnic. If they are at home, the day is punctuated by swimming in a pool, playing Cricket out the backyard, and other outdoor activities. The warm weather allows Australians to enjoy a tradition which started in 1937. Carols by Candlelight is held every year on Christmas Eve, where tens of thousands of people gather in the city of Melbourne to sing their favorite Christmas songs. The evening is lit by as many candles singing under a clean cut night sky. The sky with its Southern Cross stars is like a mirror. Sydney and the other capital cities also enjoy Carols in the weeks leading up to Christmas. Australians surround themselves with Christmas Bush, a native plant which has little red flowered leaves. Question: It seems that people can enjoy Carols by Candlelight because of _ . Options: A: the warm weather B: the Christmas Bush C: the activities at daytime D: the Southern Cross stars
A

Read the article and select the best answer. Article: Karl Fleming joined the military because he needed a change in his life. He had a successful career with a shipping company but he wanted to do something more. He found that something in the U.S. army. Fleming began his service in 2009 and never looked back. A few years later, Fleming volunteered to go to Afghanistan. There, he worked as a bodyguard for the U.S. Army Corps of Engineers. He enjoyed it, except for the almost-nightly rocket attacks. Karl was never hit directly by a rocket, but he didn't need to be to feel its effects. The rockets caused severe shaking, shaking so bad that Fleming was left with many injuries. He was also diagnosed with concussions and Post-Traumatic Stress Disorder(PTSD). Fleming said he was down but not out. Once he returned from Afghanistan, Fleming underwent one test after another. At first, Fleming said he thought he could recover or be able to return to duty and realize his dream of becoming an officer. But then came the news he had never imagined: Fleming would never be an officer because he was too injured to continue. Fleming said he was depressed after learning his military career was over. Add that to the memory loss, extreme anxiety and the many painful medical procedures he was already experiencing. He rarely ventured outside on the weekend. Instead, he preferred to sleep in. All that changed, however, with Fleming's service dog, Kuchar. Fleming said he had heard dogs could help people suffering from PTSD, so he started doing research. Karl eventually selected K9s for Warriors, which is where he met Kuchar, a yellow lab. Fleming and Kuchar trained together for weeks, before returning to Fort Benning. K9s for Warriors provided Fleming with Kuchar and the training for free. Life with Kuchar has been life-changing. Fleming doesn't sleep in any more because Kuchar won't let him. Instead, they venture out into a world Karl was once afraid of -- a world for Fleming that now seems impossible to imagine without Kuchar by his side. Question: Karl Fleming recovered with the help of _ . Options: A: an experienced bodyguard B: a well-trained dog C: a laboratory engineer D: a military officer
B