Problem: Department store:

Since the opening policy in 1979, the Chinese department stores also develops swiftly along with the fast-growing economy. There are different department store groups dominating different regions. For example, INTIME department store has the biggest market presence in Zhejiang province, while Jinying department stores dominate Jiangsu Province. Besides, there are many other department store groups, such as Pacific, Parkson, Wangfujing,New World,etc., many of them are expanding quickly by listing in the financial market.

What area does INTIME department stores have the most influence in?
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A: Zhejiang province

Problem: Greeks:

Greek art has a long and varied history. Greeks have contributed to the visual, literary and performing arts. In the West, ancient Greek art was influential in shaping the Roman and later the modern western artistic heritage. Following the Renaissance in Europe, the humanist aesthetic and the high technical standards of Greek art inspired generations of European artists. Well into the 19th century, the classical tradition derived from Greece played an important role in the art of the western world. In the East, Alexander the Great's conquests initiated several centuries of exchange between Greek, Central Asian and Indian cultures, resulting in Greco-Buddhist art, whose influence reached as far as Japan.

What important heritage of art from France was celebrated during this time?
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A: unanswerable

Problem: Saint Helena:

Most residents belong to the Anglican Communion and are members of the Diocese of St Helena, which has its own bishop and includes Ascension Island. The 150th anniversary of the diocese was celebrated in June 2009.

What communion do most residents of the island belong to?
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A: Anglican

Problem: Electric motor:

Since the armature windings of a direct-current or universal motor are moving through a magnetic field, they have a voltage induced in them. This voltage tends to oppose the motor supply voltage and so is called "back electromotive force (emf)". The voltage is proportional to the running speed of the motor. The back emf of the motor, plus the voltage drop across the winding internal resistance and brushes, must equal the voltage at the brushes. This provides the fundamental mechanism of speed regulation in a DC motor. If the mechanical load increases, the motor slows down; a lower back emf results, and more current is drawn from the supply. This increased current provides the additional torque to balance the new load.

Voltage opposing the motor supply voltage is called what?
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A:
back electromotive force