Question: "How advanced was the control system?" Context: "After the Dambusters raid in 1943 an entirely new system was developed that was required to knock down any low-flying aircraft with a single hit. The first attempt to produce such a system used a 50 mm gun, but this proved inaccurate and a new 55 mm gun replaced it. The system used a centralised control system including both search and targeting radar, which calculated the aim point for the guns after considering windage and ballistics, and then sent electrical commands to the guns, which used hydraulics to point themselves at high speeds. Operators simply fed the guns and selected the targets. This system, modern even by today's standards, was in late development when the war ended." Answer:
Ans: modern even by today's standards

Question: "How some the indirect method unify tiles?" Context: "The indirect method of applying tesserae is often used for very large projects, projects with repetitive elements or for areas needing site specific shapes. Tiles are applied face-down to a backing paper using an adhesive, and later transferred onto walls, floors or craft projects. This method is most useful for extremely large projects as it gives the maker time to rework areas, allows the cementing of the tiles to the backing panel to be carried out quickly in one operation and helps ensure that the front surfaces of the mosaic tiles and mosaic pieces are flat and in the same plane on the front, even when using tiles and pieces of differing thicknesses. Mosaic murals, benches and tabletops are some of the items usually made using the indirect method, as it results in a smoother and more even surface." Answer:
Ans: helps ensure that the front surfaces of the mosaic tiles and mosaic pieces are flat

Question: "Atwood was talking about the Polish people, also known as?" Context: "A reconciliation of these views is suggested by William Atwood: "Undoubtedly [Chopin's] use of traditional musical forms like the polonaise and mazurka roused nationalistic sentiments and a sense of cohesiveness amongst those Poles scattered across Europe and the New World ... While some sought solace in [them], others found them a source of strength in their continuing struggle for freedom. Although Chopin's music undoubtedly came to him intuitively rather than through any conscious patriotic design, it served all the same to symbolize the will of the Polish people ..."" Answer:
Ans: Poles

Question: "Xuanzong went to a place that had to deal with the?" Context: "Sichuan came under the firm control of a Chinese central government during the Sui dynasty, but it was during the subsequent Tang dynasty where Sichuan regained its previous political and cultural prominence for which it was known during the Han. Chengdu became nationally known as a supplier of armies and the home of Du Fu, who is sometimes called China's greatest poet. During the An Lushan Rebellion (755-763), Emperor Xuanzong of Tang fled from Chang'an to Sichuan. The region was torn by constant warfare and economic distress as it was besieged by the Tibetan Empire." Answer:
Ans: Tibetan Empire