Problem: Zhejiang:

The politics of Zhejiang is structured in a dual party-government system like all other governing institutions in Mainland China. The Governor of Zhejiang is the highest-ranking official in the People's Government of Zhejiang. However, in the province's dual party-government governing system, the Governor is subordinate to the Zhejiang Communist Party of China (CPC) Provincial Committee Secretary, colloquially termed the "Zhejiang CPC Party Chief".

Who is the highest-ranking official in the People's Government of Zhejiang?
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A: The Governor of Zhejiang

Problem: Labour Party (UK):

Blair announced in September 2006 that he would quit as leader within the year, though he had been under pressure to quit earlier than May 2007 in order to get a new leader in place before the May elections which were expected to be disastrous for Labour. In the event, the party did lose power in Scotland to a minority Scottish National Party government at the 2007 elections and, shortly after this, Blair resigned as Prime Minister and was replaced by his Chancellor, Gordon Brown. Although the party experienced a brief rise in the polls after this, its popularity soon slumped to its lowest level since the days of Michael Foot. During May 2008, Labour suffered heavy defeats in the London mayoral election, local elections and the loss in the Crewe and Nantwich by-election, culminating in the party registering its worst ever opinion poll result since records began in 1943, of 23%, with many citing Brown's leadership as a key factor. Membership of the party also reached a low ebb, falling to 156,205 by the end of 2009: over 40 per cent of the 405,000 peak reached in 1997 and thought to be the lowest total since the party was founded.

When did Blair announce he was quitting?
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A: September 2006

Problem: Age of Enlightenment:

Science came to play a leading role in Enlightenment discourse and thought. Many Enlightenment writers and thinkers had backgrounds in the sciences and associated scientific advancement with the overthrow of religion and traditional authority in favour of the development of free speech and thought. Scientific progress during the Enlightenment included the discovery of carbon dioxide (fixed air) by the chemist Joseph Black, the argument for deep time by the geologist James Hutton, and the invention of the steam engine by James Watt. The experiments of Lavoisier were used to create the first modern chemical plants in Paris, and the experiments of the Montgolfier Brothers enabled them to launch the first manned flight in a hot-air balloon on 21 November 1783, from the Chateau de la Muette, near the Bois de Boulogne.

Who invented the steam engine?
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A: James Watt

Problem: Railway electrification system:

Modern electrification systems take AC energy from a power grid which is delivered to a locomotive and converted to a DC voltage to be used by traction motors. These motors may either be DC motors which directly use the DC or they may be 3-phase AC motors which require further conversion of the DC to 3-phase AC (using power electronics). Thus both systems are faced with the same task: converting and transporting high-voltage AC from the power grid to low-voltage DC in the locomotive. Where should this conversion take place and at what voltage and current (AC or DC) should the power flow to the locomotive? And how does all this relate to energy-efficiency? Both the transmission and conversion of electric energy involve losses: ohmic losses in wires and power electronics, magnetic field losses in transformers and smoothing reactors (inductors). Power conversion for a DC system takes place mainly in a railway substation where large, heavy, and more efficient hardware can be used as compared to an AC system where conversion takes place aboard the locomotive where space is limited and losses are significantly higher. Also, the energy used to blow air to cool transformers, power electronics (including rectifiers), and other conversion hardware must be accounted for.

What type of losses happen during conversion and transmission in wires and electronics?
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A:
ohmic losses