问题：
【名词解释】钢琴
答案：
钢琴（意大利语：pianoforte）是西洋古典音乐中的一种键盘乐器，有“乐器之王”的美称。由88个琴键（52个白键，36个黑键）和金属弦音板组成。意大利人巴托罗密欧·克里斯多佛利（Bartolomeo Christofori） [1] ，（1655-1731）在1709年发明了钢琴。 钢琴音域范围从A2（27.5Hz）至 C5（4186Hz），几乎囊括了音乐体系中的全部音乐，是除了管风琴以外音域最广的乐器。钢琴普遍用于独奏、重奏、伴奏等演出。[听力原文]36-46 Boxing matches were very popular in England two hundred years ago. In those days, boxers fought with bare (36) fists for prize money. They were known as "prize-fighters". However, boxing was very (37) crude, for there were no rules and a prize-fighter could be seriously (38) injured or even killed during a match. One of the most famous (39) figures in boxing history was Daniel Mendoza, who was born in 17614. The use of gloves was not (40) introduced until 1860 when the Marquis of Queensberry drew up the first set of rules. Though (41) technically a prize-fighter, Mendoza did much to change crude prize-fighting into a sport. In his day, Mendoza enjoyed (42) tremendous popularity. He was (43) admired by the rich and the poor alike. Mendoza rose to fame swiftly after a boxing-match when he was only fourteen. This attracted the attention of Richard Humphries, who was then the most eminent boxer in England. (44) He offered to train Mendoza and his young pupil was quick to learn. In fact, Mendoza soon became so successful that Humphries turned against him. The two men quarreled bitterly and it was clear that the argument could only be settled by a fight. (45) The public bet a great deal of money on Mendoza, but he was defeated. It was not until his third match that Mendoza finally beat Humphries and became Champion. Meanwhile, he founded a highly successful Academy. (46) He earned enormous sums of money and was paid as much as ＄ 100 for a single appearance. Despite this, he was so extravagant that he was always in debt. After he was defeated by another boxer, he was quickly forgotten and died in poverty.