黔东南黎平县五年级下册的数学公式

Dragon Boat Festival is the grandest festival of the Miao people who live in Qingshui Rive in Southeast of Guizhou Province.In the Miao people's mind,dragon is the symbol of Good Fortune.The Miao girls love to use various of dragon pattens in their silver ornaments or clothes.The dragon boats made by the Miao people are lightweight and artistic.The body of the dragon boat is made up with three canoes bound together - one large in the middle and two small on the sides.The more-than-two-meter dragonhead which is carved from the trunk of a weep willow tree is decorated with a pair of dargon horns with one meter long.The dragonhead can be divided into three kinds as Red Dragon,Green Dragon and Yellow Dragon accroding to its main color.

Reference article: The drumtower is the Dong Zhai symbol, the Dong language calls "Hall card " Or " Hall tile " . The drumtower isindependently designs by the Dong minority skilled craftsman, does nothave the blueprint, several hundred Liang, the column, imitate thecompletely inch all in good conscience center plots against. The wholeall is the lignin structure, discusses by the pine chisel links up,does not use a nail riveting, about tallies is the Dong Zhai symbol.The drumtower shape has three, five, seven, nine and even ten isdifferent. As soon as distributes, center, the next three parts. Upside for goesagainst 尖部, 铁柱 stands by to the roof panel central committee,puts on the ceramic no. 3 gunpowder tea, assumes the bottle gourd,just like falls the point, flies high stands. The roof panel are manyis an umbrella, some four jiao, hexagon, octagonal shape. Middle forlayer upon layer folds the building, takes the form of the valuableturret body. The building angle has four jiao, the hexagon, the staranise, each Fang Loujia for 翘角, and the sculpture animal, the godshape has both, lifelike. 翘角 layer upon layer folds, heavy coffinon. From on under, compared to big, extremely magnificent sight.Plants on the board to draw has the Longfeng birds and beasts, theancient and modern character, the flowered grass carp insect as wellas the Dong minority life genre painting, Ling gathers togetherrefinedly, the all colors twist numerously. The base are many is thesquare, the building all around is equipped with the lignin bench, forthe person 歇坐, middle is the circular big firepit. The drumtowerbuilding was unique, has aroused the domestic and foreign concernedexperts' interest. A United Nations Organization official commended:" Has a distinctive style Dong minority drumtower constructionart, not only is the Chinese construction art treasure, moreover isworld construction art treasure " . The drumtower is Dong Zhaiunites the propitious symbol, prosperous symbol, of one mindperformance. Therefore, has Dong Zhaiji to have the drumtower, eitherto the family members constructs, either several surnames gatherconstruct. County-wide altogether has drumtower 321. Initiates is popular Dong Zhai five drumtowers, is most centralized,the people call it? Quot; Dong Zhaigu buildings cluster " The damstronghold township blue stronghold drumtower is within the boundariesof the county the extant historical most long drumtower, the grottotownship states the hole village the alone column drumtower, is atpresent only discovered also preserves a more complete unusualdrumtower. Initiates is popular township Ji Tangcun two drumtowers,the modelling is most beautiful, on February 13, 1982 is listed as theprovincial level key cultural relic preservation organ. Moreover JiTangcun constructs Lou Gaoshi most to have the great reputation, theBeijing Chinese nation garden, the Shanghai Chinese nation ProspectGarden's drumtower, all stems from Ji Tangcun to construct hand of theLou Gaoshi. The drumtower constructs in the stronghold centralcommittee, with the stage, the song level ground unifies, is theassembly, discusses official business, the cultural entertainment goodplace. The drumtower grand magnificent sight, the Pei sound Chineseand foreign, are the Dong minority people wisdom crystallization, alsois in the Dong township scenery scenic spot traveling life a warmestchapter.

（1）混合物　供给呼吸　　　（2）①③④⑥⑦蒸发皿 ：（1）混合物由两种或多种物质混合而成的物质．空气是氧气、氮气、稀有气体、二氧化碳等多种成分组成...

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解题思路：音色反映了声音的品质和特色，不同发声体的材料、结构不同，发出声音的音色也就不同．

他们是根据声音的音色判断的，因为不同的乐器产生的音色不同．
故选A．

点评：
本题考点： 音色．

考点点评： 要解答本题需掌握：音色反映了声音的品质与特色，音色是我们辨别不同的声音的依据．