Article: Although testing can determine the correctness of software under the assumption of some specific hypotheses (see hierarchy of testing difficulty below), testing cannot identify all the defects within software. Instead, it furnishes a criticism or comparison that compares the state and behavior of the product against oracles—principles or mechanisms by which someone might recognize a problem. These oracles may include (but are not limited to) specifications, contracts, comparable products, past versions of the same product, inferences about intended or expected purpose, user or customer expectations, relevant standards, applicable laws, or other criteria.

Question: What can testing not completely find?
Ans: all the defects


Article: Hazards to aircraft include debris, nesting birds, and reduced friction levels due to environmental conditions such as ice, snow, or rain. Part of runway maintenance is airfield rubber removal which helps maintain friction levels. The fields must be kept clear of debris using cleaning equipment so that loose material does not become a projectile and enter an engine duct (see foreign object damage). In adverse weather conditions, ice and snow clearing equipment can be used to improve traction on the landing strip. For waiting aircraft, equipment is used to spray special deicing fluids on the wings.

Question: In adverse weather conditions, what can be used to improve traction on the landing strip?
Ans: ice and snow clearing equipment


Article: This Act clearly demarcated borders between the Crown and the Company. After this point, the Company functioned as a regularised subsidiary of the Crown, with greater accountability for its actions and reached a stable stage of expansion and consolidation. Having temporarily achieved a state of truce with the Crown, the Company continued to expand its influence to nearby territories through threats and coercive actions. By the middle of the 19th century, the Company's rule extended across most of India, Burma, Malaya, Singapore, and British Hong Kong, and a fifth of the world's population was under its trading influence. In addition, Penang, one of the states in Malaya, became the fourth most important settlement, a presidency, of the Company's Indian territories.

Question: during this time the relationship change between Britian and the EIC. the EIC became more of a what to the crown??
Ans: regularised subsidiary


Article: On 15 August 2006, Brian May confirmed through his website and fan club that Queen + Paul Rodgers would begin producing their first studio album beginning in October, to be recorded at a "secret location". Queen + Paul Rodgers performed at the Nelson Mandela 90th Birthday Tribute held in Hyde Park, London on 27 June 2008, to commemorate Mandela's ninetieth birthday, and again promote awareness of the HIV/AIDS pandemic. The first Queen + Paul Rodgers album, titled The Cosmos Rocks, was released in Europe on 12 September 2008 and in the United States on 28 October 2008. Following the release of the album, the band again went on a tour through Europe, opening on Kharkiv's Freedom Square in front of 350,000 Ukrainian fans. The Kharkiv concert was later released on DVD. The tour then moved to Russia, and the band performed two sold-out shows at the Moscow Arena. Having completed the first leg of its extensive European tour, which saw the band play 15 sold-out dates across nine countries, the UK leg of the tour sold out within 90 minutes of going on sale and included three London dates, the first of which was The O2 on 13 October. The last leg of the tour took place in South America, and included a sold-out concert at the Estadio José Amalfitani, Buenos Aires.

Question: Which band performed at Nelson Mandela's 90th birthday?
Ans:
Queen + Paul Rodgers