Problem: At the centre of this wing is the famous balcony with the Centre Room behind its glass doors. This is a Chinese-style saloon enhanced by Queen Mary, who, working with the designer Sir Charles Allom, created a more "binding" Chinese theme in the late 1920s, although the lacquer doors were brought from Brighton in 1873. Running the length of the piano nobile of the east wing is the great gallery, modestly known as the Principal Corridor, which runs the length of the eastern side of the quadrangle. It has mirrored doors, and mirrored cross walls reflecting porcelain pagodas and other oriental furniture from Brighton. The Chinese Luncheon Room and Yellow Drawing Room are situated at each end of this gallery, with the Centre Room obviously placed in the centre.
Which Queen enhanced the Chinese theme of the Centre Room in the 1920s?
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Answer: Queen Mary

Problem: Because of its limited land area, Bermuda has had difficulty with over-population. In the first two centuries of settlement, it relied on steady human emigration to keep the population manageable.[citation needed] Before the American Revolution more than ten thousand Bermudians (over half of the total population through the years) gradually emigrated, primarily to the Southern United States. As Great Britain displaced Spain as the dominant European imperial power, it opened up more land for colonial development. A steady trickle of outward migration continued. With seafaring the only real industry in the early decades, by the end of the 18th century, at least a third of the island's manpower was at sea at any one time.
How many Bermudians emigrated during the American Revolution?
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Answer: unanswerable

Problem: Another principal tool in the diagnosis of infectious disease is microscopy. Virtually all of the culture techniques discussed above rely, at some point, on microscopic examination for definitive identification of the infectious agent. Microscopy may be carried out with simple instruments, such as the compound light microscope, or with instruments as complex as an electron microscope. Samples obtained from patients may be viewed directly under the light microscope, and can often rapidly lead to identification. Microscopy is often also used in conjunction with biochemical staining techniques, and can be made exquisitely specific when used in combination with antibody based techniques. For example, the use of antibodies made artificially fluorescent (fluorescently labeled antibodies) can be directed to bind to and identify a specific antigens present on a pathogen. A fluorescence microscope is then used to detect fluorescently labeled antibodies bound to internalized antigens within clinical samples or cultured cells. This technique is especially useful in the diagnosis of viral diseases, where the light microscope is incapable of identifying a virus directly.
What do virtually all culture techniques rely on at some point?
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Answer:
microscopic examination