Problem: Please answer a question about the following article about Airport:
At extremely large airports, a circuit is in place but not usually used. Rather, aircraft (usually only commercial with long routes) request approach clearance while they are still hours away from the airport, often before they even take off from their departure point. Large airports have a frequency called Clearance Delivery which is used by departing aircraft specifically for this purpose. This then allows aircraft to take the most direct approach path to the runway and land without worrying about interference from other aircraft. While this system keeps the airspace free and is simpler for pilots, it requires detailed knowledge of how aircraft are planning to use the airport ahead of time and is therefore only possible with large commercial airliners on pre-scheduled flights. The system has recently become so advanced that controllers can predict whether an aircraft will be delayed on landing before it even takes off; that aircraft can then be delayed on the ground, rather than wasting expensive fuel waiting in the air.
Which aircraft request approach clearance while they are still hours away from the airport?
A: commercial with long routes
Problem: Please answer a question about the following article about Han dynasty:
In addition to tributary relations with the Kushans, the Han Empire received gifts from the Parthian Empire, from a king in modern Burma, from a ruler in Japan, and initiated an unsuccessful mission to Daqin (Rome) in AD 97 with Gan Ying as emissary. A Roman embassy of Emperor Marcus Aurelius (r. 161180 AD) is recorded in the Hou Hanshu to have reached the court of Emperor Huan of Han (r. AD 146168) in AD 166, yet Rafe de Crespigny asserts that this was most likely a group of Roman merchants. Other travelers to Eastern-Han China included Buddhist monks who translated works into Chinese, such as An Shigao of Parthia, and Lokaksema from Kushan-era Gandhara, India.
Which empire sent the Han gifts?
A: Parthian
Problem: Please answer a question about the following article about Sino-Tibetan relations during the Ming dynasty:
Tsai writes that shortly after the visit by Deshin Shekpa, the Yongle Emperor ordered the construction of a road and of trading posts in the upper reaches of the Yangzi and Mekong Rivers in order to facilitate trade with Tibet in tea, horses, and salt. The trade route passed through Sichuan and crossed Shangri-La County in Yunnan. Wang and Nyima assert that this "tribute-related trade" of the Ming exchanging Chinese tea for Tibetan horseswhile granting Tibetan envoys and Tibetan merchants explicit permission to trade with Han Chinese merchants"furthered the rule of the Ming dynasty court over Tibet". Rossabi and Sperling note that this trade in Tibetan horses for Chinese tea existed long before the Ming. Peter C. Perdue says that Wang Anshi (10211086), realizing that China could not produce enough militarily capable steeds, had also aimed to obtain horses from Inner Asia in exchange for Chinese tea. The Chinese needed horses not only for cavalry but also as draft animals for the army's supply wagons. The Tibetans required Chinese tea not only as a common beverage but also as a religious ceremonial supplement. The Ming government imposed a monopoly on tea production and attempted to regulate this trade with state-supervised markets, but these collapsed in 1449 due to military failures and internal ecological and commercial pressures on the tea-producing regions.
Why did Yongle order the construction?
A: to facilitate trade with Tibet
Problem: Please answer a question about the following article about Melbourne:
Three daily newspapers serve Melbourne: the Herald Sun (tabloid), The Age (formerly broadsheet, now compact) and The Australian (national broadsheet). Six free-to-air television stations service Greater Melbourne and Geelong: ABC Victoria, (ABV), SBS Victoria (SBS), Seven Melbourne (HSV), Nine Melbourne (GTV), Ten Melbourne (ATV), C31 Melbourne (MGV) community television. Each station (excluding C31) broadcasts a primary channel and several multichannels. C31 is only broadcast from the transmitters at Mount Dandenong and South Yarra. Hybrid digital/print media companies such as Broadsheet and ThreeThousand are based in and primarily serve Melbourne.
What type of companies are Broadsheet and ThreeThousand?
A:
Hybrid digital/print media