Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
After the 1969 coup, representatives of the Four Powers – France, the United Kingdom, the United States and the Soviet Union – were called to meet RCC representatives. The U.K. and U.S. quickly extended diplomatic recognition, hoping to secure the position of their military bases in Libya and fearing further instability. Hoping to ingratiate themselves with Gaddafi, in 1970 the U.S. informed him of at least one planned counter-coup. Such attempts to form a working relationship with the RCC failed; Gaddafi was determined to reassert national sovereignty and expunge what he described as foreign colonial and imperialist influences. His administration insisted that the U.S. and U.K. remove their military bases from Libya, with Gaddafi proclaiming that "the armed forces which rose to express the people's revolution [will not] tolerate living in their shacks while the bases of imperialism exist in Libyan territory." The British left in March and the Americans in June 1970.
What nations comprised the Four Powers?
A: France, the United Kingdom, the United States and the Soviet Union

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In response to these hardware flaws, "Nintendo Authorized Repair Centers" sprang up across the U.S. According to Nintendo, the authorization program was designed to ensure that the machines were properly repaired. Nintendo would ship the necessary replacement parts only to shops that had enrolled in the authorization program. In practice, the authorization process consisted of nothing more than paying a fee to Nintendo for the privilege. In a recent trend, many sites have sprung up to offer Nintendo repair parts, guides, and services that replace those formerly offered by the authorized repair centers.
What did the repair centers promise?
A: ensure that the machines were properly repaired

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It has been proved that each class is strictly included into the next. For instance, testing when we assume that the behavior of the implementation under test can be denoted by a deterministic finite-state machine for some known finite sets of inputs and outputs and with some known number of states belongs to Class I (and all subsequent classes). However, if the number of states is not known, then it only belongs to all classes from Class II on. If the implementation under test must be a deterministic finite-state machine failing the specification for a single trace (and its continuations), and its number of states is unknown, then it only belongs to classes from Class III on. Testing temporal machines where transitions are triggered if inputs are produced within some real-bounded interval only belongs to classes from Class IV on, whereas testing many non-deterministic systems only belongs to Class V (but not all, and some even belong to Class I). The inclusion into Class I does not require the simplicity of the assumed computation model, as some testing cases involving implementations written in any programming language, and testing implementations defined as machines depending on continuous magnitudes, have been proved to be in Class I. Other elaborated cases, such as the testing framework by Matthew Hennessy under must semantics, and temporal machines with rational timeouts, belong to Class II.
If the number of states are unknown and the finite state of the machine is failing for a single trace, which group does this fall into?
A: Class III

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For any animal, survival requires maintaining a variety of parameters of bodily state within a limited range of variation: these include temperature, water content, salt concentration in the bloodstream, blood glucose levels, blood oxygen level, and others. The ability of an animal to regulate the internal environment of its body—the milieu intérieur, as pioneering physiologist Claude Bernard called it—is known as homeostasis (Greek for "standing still"). Maintaining homeostasis is a crucial function of the brain. The basic principle that underlies homeostasis is negative feedback: any time a parameter diverges from its set-point, sensors generate an error signal that evokes a response that causes the parameter to shift back toward its optimum value. (This principle is widely used in engineering, for example in the control of temperature using a thermostat.)
Homeostasis is Greek for what phrase?
A:
"standing still"