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若诊断为狐疝，必须下列哪项支持：
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[听力原文]11-15What should we do to stay healthy One important rule is to exercise often.The Fisher family try to exercise every day. Mr. Fisher can not exercise in the morning because he must be at his job at exactly seven o’ clock. But he runs every evening. He would rather nm than watch TV. Walter exercises a lot too. He walks to school every day, and after school he plays different sports with his friends. Mrs. Fisher goes to a yoga class twice a week.The Fishers all feel better now. And they believe you mustn’ t be lazy. You don’ t have to exercise every day. But you should try to get in shape and stay in shape. What should we do to stay healthyOne important role is（）
Section Ⅱ Reading Comprehension Part A Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. (40 points) Text 1 More than two centuries after Benjamin Franklin used one to study lightning, a team of atmospheric scientists has found that kites are a potent research tool for studying air conditions at high altitudes. Ben Balsley and John Briks at the University of Colorado have developed a kite and instrument package to sample the atmosphere up to 3.5 kilometers high, for up to two days at a time. The kite is cheaper and more flexible than balloons and aircraft, the traditional vehicles for atmospheric research. Within two years the team expects to fly kites up to 10 kilometers high, and Briks hopes to use these to measure carbon dioxide and methane emissions over the Brazilian rainforest and the transport of air pollutants over the Atlantic Ocean. The kite is a 15-square-meter Para foil made of Mylar, which ’is not only strong, but unlike nylon, Joes not absorb water. The kite "string" is made of Kevlar, famous for its use in bullet-proof vests, which is so strong that 6 kilometers of it weighs just 18 kilograms, yet can withstand a loading of 430 kilograms. The most innovative component of the system is the TRAM, or Tethered Rover for Atmospheric Measurements, which can move the sampling instruments ’up and down the tether while the kite maintains a constant altitude. "Our instruments measure such things as temperature, pressure, humidity, and concentrations of ozone and other air pollutants," Beasley explains. "We need to get continuous measurements, over the course of days, from various altitudes. Conventional free balloon methods can sample such parameters, but they cannot stay in any one position, and are limited to altitudes of two kilometers. Aircraft can sample at any altitude, but they are very expensive to operate, and cannot remain in one position for more than four hours." The TRAM, which is actually a kite-like aerofoil connected by small wheels to the kite’s tether, can be operated from the ground. It will move up and down the tether, or maintain a given altitude while the instruments sample the air. "An important cost of balloon sampling is the instrument package ,which typically costs about $1000, and is always lost." Basely says "Now we can use the instruments on the TRAM, and not only get more data, but reuse it again and again," The TRAM with its instruments, including the radiotelemetry link to the scientists on the ground, weighs 6 kilograms, including batteries that can power it for two days. Basely and his colleagues are continuing to improve the kite and TRMA, and expand its capacities, but Basely notes that it does have its limitations: "The kite can only lift about 10 kilograms, and this means the equipment’ s power requirements must be low, too. We need locations with steady, relatively strong winds, and must also avoid air traffic." What does the word "Which" in line 3 of the third paragraph refer to（）
企业接受的投资者投入的商品应按照投资合同或协议约定的价值确定其成本，但合同或协议约定价值不公允的除外。 ( )
西部某开发公司与某教育局在一次公开募捐仪式上达成捐赠协议，由西部某开发公司向该组织捐赠某种健身器材100套，双方约定交货地点为该教育局所在地，但该教育局必须将该捐赠过程中的一些重要镜头在某电视台用专题形式播出。协议书面订立后，该西部某开发公司又与当地一运输公司签订运输合同，由该公司将这批货运至该教育局所在地。请回答下列问题， 如果在签订捐赠协议后，西部某开发公司因经营状况极度恶化无法履行协议，能否请求不再履行
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