Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The early Qing emperors adopted the bureaucratic structures and institutions from the preceding Ming dynasty but split rule between Han Chinese and Manchus, with some positions also given to Mongols. Like previous dynasties, the Qing recruited officials via the imperial examination system, until the system was abolished in 1905. The Qing divided the positions into civil and military positions, each having nine grades or ranks, each subdivided into a and b categories. Civil appointments ranged from attendant to the emperor or a Grand Secretary in the Forbidden City (highest) to being a prefectural tax collector, deputy jail warden, deputy police commissioner or tax examiner. Military appointments ranged from being a field marshal or chamberlain of the imperial bodyguard to a third class sergeant, corporal or a first or second class private.
Who split the leadership roles in the Qing dynasty?
A: Han Chinese and Manchus

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Proteins are structural materials in much of the animal body (e.g. muscles, skin, and hair). They also form the enzymes that control chemical reactions throughout the body. Each protein molecule is composed of amino acids, which are characterized by inclusion of nitrogen and sometimes sulphur (these components are responsible for the distinctive smell of burning protein, such as the keratin in hair). The body requires amino acids to produce new proteins (protein retention) and to replace damaged proteins (maintenance). As there is no protein or amino acid storage provision, amino acids must be present in the diet. Excess amino acids are discarded, typically in the urine. For all animals, some amino acids are essential (an animal cannot produce them internally) and some are non-essential (the animal can produce them from other nitrogen-containing compounds). About twenty amino acids are found in the human body, and about ten of these are essential and, therefore, must be included in the diet. A diet that contains adequate amounts of amino acids (especially those that are essential) is particularly important in some situations: during early development and maturation, pregnancy, lactation, or injury (a burn, for instance). A complete protein source contains all the essential amino acids; an incomplete protein source lacks one or more of the essential amino acids.
Approximately how many amino acid types does the human body generally have?
A: twenty

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The armillary sphere, a three-dimensional representation of the movements in the celestial sphere, was invented in Han China by the 1st century BC. Using a water clock, waterwheel and a series of gears, the Court Astronomer Zhang Heng (78139 AD) was able to mechanically rotate his metal-ringed armillary sphere. To address the problem of slowed timekeeping in the pressure head of the inflow water clock, Zhang was the first in China to install an additional tank between the reservoir and inflow vessel. Zhang also invented a seismometer (Houfeng didong yi ) in 132 AD to detect the exact cardinal or ordinal direction of earthquakes from hundreds of kilometers away. This employed an inverted pendulum that, when disturbed by ground tremors, would trigger a set of gears that dropped a metal ball from one of eight dragon mouths (representing all eight directions) into a metal toad's mouth.
What was exchanged from mouth to mouth in the usage of the seismometer?
A: metal ball

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
A Frankish identity emerged and so did their Frankish or Franconian language. The language itself is poorly attested. A notable exception is the Bergakker inscription, found near the Dutch city of Tiel, which may represent a primary record of 5th-century Frankish. Although some placenames recorded in Roman texts could arguably be considered as the oldest "Dutch" single words, like vadam (modern Dutch: wad, English: "mudflat"), the Bergakker inscription yields the oldest evidence of Dutch morphology, but there is no consensus on the interpretation of the rest of the text.
To which century do some researchers attribute the Bergakker inscription?
A:
5th