Problem: Pacific War:

In Burma the British, under intense pressure, made a fighting retreat from Rangoon to the Indo-Burmese border. This cut the Burma Road which was the western Allies' supply line to the Chinese Nationalists. In March 1942, Chinese Expeditionary Force started to attack Japanese forces in northern Burma. On 16 April, 7,000 British soldiers were encircled by the Japanese 33rd Division during the Battle of Yenangyaung and rescued by the Chinese 38th Division led by Sun Li-jen. Cooperation between the Chinese Nationalists and the Communists had waned from its zenith at the Battle of Wuhan, and the relationship between the two had gone sour as both attempted to expand their area of operations in occupied territories. Most of the Nationalist guerrilla areas were eventually overtaken by the Communists. On the other hand, some Nationalist units were deployed to blockade the Communists and not the Japanese. Furthermore, many of the forces of the Chinese Nationalists were warlords allied to Chiang Kai-Shek, but not directly under his command. "Of the 1,200,000 troops under Chiang's control, only 650,000 were directly controlled by his generals, and another 550,000 controlled by warlords who claimed loyalty to his government; the strongest force was the Szechuan army of 320,000 men. The defeat of this army would do much to end Chiang's power." The Japanese exploited this lack of unity to press ahead in their offensives.

Who led the rescue of British forces during the Battle of Yenangyaung?
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A: Sun Li-jen

Problem: Two groups G and H are called isomorphic if there exist group homomorphisms a: G H and b: H G, such that applying the two functions one after another in each of the two possible orders gives the identity functions of G and H. That is, a(b(h)) = h and b(a(g)) = g for any g in G and h in H. From an abstract point of view, isomorphic groups carry the same information. For example, proving that g g = 1G for some element g of G is equivalent to proving that a(g) a(g) = 1H, because applying a to the first equality yields the second, and applying b to the second gives back the first.
What similar element do isomorphic groups carry?
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Answer: isomorphic groups

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
For guidance in practical application of Jewish law, the majority of Orthodox Jews appeal to the Shulchan Aruch ("Code of Jewish Law" composed in the 16th century by Rabbi Joseph Caro) together with its surrounding commentaries. Thus, at a general level, there is a large degree of uniformity amongst all Orthodox Jews. Concerning the details, however, there is often variance: decisions may be based on various of the standardized codes of Jewish Law that have been developed over the centuries, as well as on the various responsa. These codes and responsa may differ from each other as regards detail (and reflecting the above philosophical differences, as regards the weight assigned to these). By and large, however, the differences result from the historic dispersal of the Jews and the consequent development of differences among regions in their practices (see minhag).
there is a large degree of what amongst all orthodox jews?
A: uniformity

Context and question: In 2011 a new, improved version of the Wayback Machine, with an updated interface and fresher index of archived content, was made available for public testing.
What was closed for testing?
Answer: unanswerable

Question: There were too few ethnic Manchus to conquer China, so they gained strength by defeating and absorbing Mongols, but more importantly, adding Han Chinese to the Eight Banners. The Manchus had to create an entire "Jiu Han jun" (Old Han Army) due to the massive amount of Han Chinese soldiers which were absorbed into the Eight Banners by both capture and defection, Ming artillery was responsible for many victories against the Manchus, so the Manchus established an artillery corps made out of Han Chinese soldiers in 1641 and the swelling of Han Chinese numbers in the Eight Banners led in 1642 of all Eight Han Banners being created. It was defected Ming Han Chinese armies which conquered southern China for the Qing.
Is there an answer to this question: When did the Manchus create their own artillery?

Answer: 1641

Question: The firm of John Russell Pope designed Broad Street Station as well as Branch House on Monument Avenue, designed as a private residence in the Tudor style, now serving as the Branch Museum of Architecture and Design. Broad Street Station (or Union Station), designed in the Beaux-Arts style, is no longer a functioning station but is now home to the Science Museum of Virginia. Main Street Station, designed by Wilson, Harris, and Richards, has been returned to use in its original purpose. The Jefferson Hotel and the Commonwealth Club were both designed by the classically trained Beaux-Arts architects Carrere and Hastings. Many buildings on the University of Richmond campus, including Jeter Hall and Ryland Hall, were designed by Ralph Adams Cram, most famous for his Princeton University Chapel and the Cathedral of Saint John the Divine.
Is there an answer to this question: What is another name for Broad Street Station?

Answer:
Union Station