民乐分类的基本形式是?全音符、二分音符、四分音符、八分音符、十六分音符的简谱记法、节奏记法、时值是

广东民乐《彩云追月》，是选月亮为参照物；
竹排相对于岸位置不断变化，则“竹排江中游”是以河岸为参照物；
两岸的青山相对于竹排的位置不断变化，则“青山两岸走”是以竹排为参照物．
故答案为：月亮；河岸；竹排．

解题思路：如果物体相对于参照物的位置保持不变，则物体是静止的，如果物体的位置相对于参照物的位置不断变化，则物体是运动的；据此分析答题．

广东民乐《彩云追月》，是选月亮为参照物；
竹排相对于岸位置不断变化，则“竹排江中游”是以河岸为参照物；
两岸的青山相对于竹排的位置不断变化，则“青山两岸走”是以竹排为参照物．
故答案为：月亮；河岸；竹排．

点评：
本题考点： 参照物及其选择．

考点点评： 本题考查了参照物的选择，知道：物体相对于参照物位置变了则物体是运动的，位置不变则物体是静止的，这是解题的关键．

解题思路：物理学中把人耳能感觉到的声音的强弱称为响度，把声音的高低称为音调，音色反映了声音的品质与特色．声音的三个特征分别是：音调、响度、音色，是从不同角度描述声音的，音调指声音的高低，由振动频率决定；响度指声音的强弱或大小，与振幅和距离有关；音色是由发声体本身决定的一个特性；琴弦长度的变化影响了振动的快慢，就改变了音调．

琴弦长度的变化影响了琴弦振动的快慢，振动快慢决定了声音的音调；故二胡是通过改变振动弦的长度来改变所发出声音的音调．
故选B．

点评：
本题考点： 音调．

考点点评： 声音的特征有音调、响度、音色；三个特征是从三个不同角度描述声音的，且影响三个特征的因素各不相同．

深圳市 龙华新区 民乐老村 55栋 3603室
Room 3603, Building 55, Minlelao Village, Longhua New District, Shenzhen, Guangdong, China

深圳市 龙华镇 民乐工业区 55栋 3603室
Room 3603, Building 55, Minle Industrial Zone, Longhua Town, Shenzhen, Guangdong, China

...不给出文章段落请问如何回答，虽然在下学琵琶也不好给出答案啊，琵琶指法很多的。常见的也就弹挑什么的。

设原来民乐队有x人,则鼓号队有2x人
2x-7=x+13
2x-x=13+7
x=20
鼓号队有2x=2×20=40人

D项,一个是“到”,一个是“极”.

I'm am into the native joys very much.
The brothers are arguing about how to use the money.
Grandpa is very fond of giving advise to the youngs.
We can get much messages from surfing the internet.
The didn't understand that thing,nor do we.
She solve the problem by herself at last.
Make a list of the things you should do.
Fill in your address and number here,please.

What is a Dulcimer?
Background
The origin of the dulcimer is as elusive as its haunting sound. Two types of instrument stake claim to the name—both have different shapes, different methods of being played, and diverse origins. The fretted dulcimer resembles an elongated violin with a limited number of strings (usually three to five) that can be plucked or bowed. In the United States, the fretted dulcimer is better known as the Appalachian or Mountain dulcimer.
The hammered dulcimer is rectangular or trapezoidal in shape and has sets of multiple strings with a range of up to three octaves. The instrument is played with two light-weight beaters called hammers that are shaped like long-handled spoons and are used to strike the strings.
History
The history of both dulcimers is confused because they were developed to play folk music and sprang up independently in a number of locations in Europe and the Middle East. It is not known how or if varieties of dulcimers crossed cultural or topographic barriers.
The hammered dulcimer is considered a member of the zither family and may have origins in Iran as the citar or santir, an instrument used to produce the ancient classical music of Persia. The spice and silk trades that criscrossed the Middle East during the Middle Ages and the Renaissance may have been responsible for the instrument's presence in Spain by the twelfth century and its appearance in China. In China, it is called the yangqin, yang ch 'in, or foreign zither.
The French version of the hammered zither was called the tympanon, and it's strings were struck with leather-covered hammers. The instrument experienced great popularity from about 1697-1770 due to an inventor named Pantaleon Hebestreit, who constructed a version with 186 strings and named it a pantaleon. The instrument appeared to fade in popularity with the rise of the piano.
By unknown paths of immigration, hammered dulcimers arrived in the United States. The instrument was sufficiently popular to have been carried by both the Montgomery Ward and Sears Roebuck catalogues in the 1800s and early 1900s. The hammered dulcimer was also reportedly the favorite instrument of Henry Ford and enjoyed a mild revival thanks to his admirers. The harpsichord and pianoforte (or piano) are hammered dulcimers to which keyboards have been attached.
The Appalachian dulcimer or dulcimore is generally hourglass-shaped with three to five strings and frets (low ridges against which the strings are pressed). Its strings are plucked with the fingers, a pick, or a quill, and the player's left hand holds a stick or plectrum on the strings as a stop. Nordic settlers claim to have brought the dulcimer to the New World. The Swedes brought their version called a humle, Icelanders imported the langspil, and Norwegian immigrants brought the langleik. The Germans and Dutch had developed two instruments, the scheitholt and the hummel, which became the folk instrument of Pennsylvania where so many Germans settled. To this mix of variants, the French added their Epinette des Vosges, which is less box-like and more similar in shape to a violin.
Many of the Scotch-Irish who left Ireland in the early 1700s settled first in Pennsylvania before following the frontiersmen to the Appalachian mountains and along the Ohio River. While in Pennsylvania, they may well have heard the scheitholt or humle played by the Pennsylvania Dutch. The German instruments were elongated boxes with frets and a limited number of strings; these either merged with British versions or were developed by the Scotch-Irish settlers to form the hourglass-shaped instrument now known as the Appalachian dulcimer.
Design
As the history of the dulcimer suggests, almost anything goes in selecting the shape of an Appalachian dulcimer. The size and depth of the soundbox must be chosen for the desired sound of the instrument. The deeper and larger boxes produce both louder and lower tones. Perhaps the most eye-catching and apparently ornamental feature of the dulcimer is the sound holes. Some of these are both beautiful and elaborate. The actual shape of the hole does not affect the sound, but the length of slots or elongated holes is important. Like the f holes in a violin, they free longer pieces of the sound-board from the constraining effects of the rigid sides so that the soundboard vibrates more responsively to the strings.
Design of a dulcimer begins with making a pattern and selecting the size of the instrument. Size is determined from the outside in. Strings are available from manufacturers in standard lengths between 25-30 in (63.5-76.2 cm). The soundbar is as long as the strings, but because it is fixed to the sound-box with a nut several inches down from the top of the solid end of the box, the soundbox must be longer than the soundboard. The soundbox is usually 6-8 in (15.2-20.3 cm) wide and up to 2 in (5.08 cm) deep. The maximum measurements have proven to produce the best sound character, including loudness and timbre, or quality of sound.
After the basic dimensions are chosen, a pattern is made on paper or cardboard. One half of the dulcimer is outlined on the paper, which is folded on the axis and cut to produce the mirror image. A form will be made to shape the upper and lower curves of the dulcimer, so before the pattern is cut, a partial pattern is made of this shape so that top and bottom match.
Raw Matericals
Many types of fine wood can be used to make a dulcimer. The outer wood forms the finish and should be selected for its beauty and grain, while the inner wood (usually oak) does not have to be attractive, although the material must respond to steam used to soften and shape the sides. The outer or finish wood used for the soundboard may be walnut, spruce, pine, or yellow poplar and should produce a bright sound due to the presence of hard and soft streaks in the wood. Such striations will give the finished dulcimer visual as well as aural beauty. The body of the dulcimer is usually made of harder wood like cherry, black walnut, or mahogany. The tuning pegs are Brazilian rosewood, although old dulcimers have ebony, rosewood, metal, or crude wooden pegs.
Frets on old dulcimers were also made of a variety of materials including silver, steel, brass, staghorn, ivory, bone, and various woods. Today, commercially-made fretting material is manufactured by specialists in a tee-shaped cross section that is convenient to fit to an instrument. These frets are made of nickel silver or brass. Also made by specialty manufacturers, dulcimer strings are standard, using the same strings as are manufactured for 12-string guitars.
The Manufacturing
Process
Master jig assembly
After the design is selected and the pattern is made, dies must be constructed to form the sides of the dulcimer. Only two shapes are involved—the curves of the upper and lower sections of the instrument called bouts and the center violin-like cutout called a waist, which may be any simple curve including a circle. Heavy blocks of wood are used to make the dies. The curves are cut with a band saw and sanded to match exactly.
A master jig assembly is also an important preliminary. The jig is a piece of plywood that is used to mount and form the dulcimer. Typically, a piece of 0.75 in (1.9 cm) thick plywood that is about 10 in (25.4 cm) longer than the dulcimer and 4 or 5 in (10.2-13 cm) wider is selected. The pattern is mounted on the center of the board, and fourpenny finishing nails are driven into the board at 2 in (5.1 cm) spacings around the pattern's edge with extra room at the ends. The nails support the inside of the sides of the instrument while it is being shaped.
Sides and internal bracing
To shape the sides, 0.125 in (0.32 cm) thick wood is cut in pieces that are as deep as the dulcimer and longer than the curves forming the soundbox. One piece of finish wood backed by a piece of oak is placed in a steam cooker for about 20 minutes to soften the wood. The wood is carefully removed, placed in between the halves of the die, and clamped together. The form with the wood pieces enclosed is then dried in an oven. All the sections are formed this way. Then the outer finish wood piece is glued to the oak backing with polyester or epoxy resin glue. The glued sections are returned to the forming dies and clamped until the glue hardens.
When all the curved side sections are formed, the center curves are placed in the master jig assembly. They must be adjusted by eye to be symmetrical. Then, finish nails are driven along the outsides of the sections to hold them in place. The end sections should be fitted to the centerpieces, however all sections were cut long. After the ends are properly fitted, the center sections are removed, cut to their proper lengths, and rasped or sanded for smoothness. The end sections are then refitted. They will overlap the center sections and must be trimmed to mate with the ends of the center sections. Also, the inner oak pieces are trimmed back so they are not exposed on the finished surface. Visual symmetry and tightly fitting joints will produce the most beautiful instrument in sound and appearance.
Internal braces are required to make the instrument structurally strong but also to provide the best resonance. Braces are fit to the junctions of the curved sections and also across the centers of the upper and lower curved sections. The braces fit against the back of the dulcimer and the front (sound-board), but they do not extend to the full depth of the instrument. The braces are seated on notches in the side sections. The back braces are glued and clamped into place first. Placement of the front braces offers the final chance to adjust the shape of the instrument.
Tuning head and pegs
Dulcimers often have elaborately scrolled tuning heads at the tops of the instruments. The tuning head has to be large enough to allow 1 in (2.54 cm) spacings between the pegs. Care is also taken to arrange the pegs so the string from one does not ride on the peg for another. Corresponding peg holes on the head are cut and tapered to match.
The head consists of three pieces of finish wood that will be sandwiched together. The overall dimension is about 7 in (18 cm) in length and 4 in (10.2 cm) in width. The pieces are clamped or lightly glued together and cut with a band saw to shape the scroll. The pieces are taken apart, a string slot is cut in the bottom of the center section, and the pieces are then permanently glued together. After the glue has hardened, the peg holes are drilled. The instrumentend of the tuning head must then be mortised to fit the instrument and the taper of the tuning head is shaped by careful wood-working and smooth sanding.
Four tuning pegs are required. Pieces of 1 in (2.54 cm) square rosewood are cut to 4 in (10.2 cm) lengths. Two inches of the total length are turned to form a tapered peg, and the heads are flattened and shaped so they are easy to grip. The pegs must be individually fitted to the tuning head because the tapers will vary. A tapered reamer is used to ream the holes that were previously drilled through the tuning head. The tuning head can be fitted to the sides of the sound box by carefully matching and fitting the mortises. A fitted block is made to match the base of the tuning head and reinforce the upper end of the sound box. The joints are then glued and clamped securely. For the lower end of the sound box, a tail section is made with mortises to fit the sides of the soundbox. A similar reinforcing block is made for the tail section.
Soundboard and soundbar
The soundboard works as a diaphragm that allows air (and sound) to resonate in the instrument. Grains in the wood should extend the full length of the soundbox. The soundboard is made in two sections with a gap of about 1 in (2.54 cm) between the two halves to allow for the hollow portion of the soundbar. The soundboard is also cut to extend about 0.125 in (0.32 cm) beyond the sides of the dulcimer. The two halves are fitted to the sides with the overhanging lip and glued and clamped in place.
The soundbar is the length of the soundbox plus 0.5 in (1.3 cm), extending up into the tuning head. It is constructed of three pieces of wood to be semihollow. That is, two pieces of finish wood form the sides and the top piece forms the finger-board, leaving a three-sided center tunnel or tube down the middle of the soundboard. Finish pieces are cut to close the top and bottom ends of the soundbar, and the whole assembly is fitted and glued into place. Edges and ends are checked for squareness and are smoothed. The hole for the nut used to fix the soundbar to the soundbox is drilled several inches below the junction of the soundbar with the tuning head so the two are not acoustically connected. The nut is the only connection attaching the soundbar to the soundbox, again allowing for vibration and resonance.
Frets are positioned on the fingerboard of the soundbar based on calculations related to the string length of the instrument. The fret positions are usually tempered by comparing tones with a tuned piano and repositioning the frets before they are permanently placed. Prefabricated metal fret material is hammered into saw cuts at the locations of the frets. The saw cuts are extremely thin and about 0.0625 in 0.16 cm) deep. Overcutting causes the frets to rattle. The edges of the finished frets are filed for smoothness and level. A bridge is also cut from hard maple. It is placed at the tail end of the dulcimer to support the strings and is allowed to float in place, rather than being glued, to permit fine adjustment of the strings and optimal sound.
Soundbox and strings
Finally, the back of the soundbox is cut from the finish wood in a single piece and with a 0.125 in (0.32 cm) overlap around the edge. The back is glued to all the edges and braces on the backside of the instrument.
The strings are fitted to the instrument before the wood is finished. Holes are drilled in the tailpiece and the tuning pegs. Fine, equally spaced notches are cut in the bridge and the nut to support the strings when they are tightened. Three steel strings that are each 0.012 in (0.03 cm) in diameter and one 0.022 in (0.56 cm) wound steel string are typically used on a four-string dulcimer. The strings are threaded individually through the tailpiece, over the bridge and nut, and through the holes in the tuning pegs. Each peg is turned until the string is tight. The clearance of the string at each position is checked and the strings are lowered at the nut by cutting deeper notches. The bridge is also adjusted to correct the string length.
Finishing
The strings, bridge, and tuning pegs are removed before the instrument is finished. The finish that is selected is essentially a part of the design of the instrument because the type of wood, its grain, the desired sound effects, and the final appearance are all considerations. Some dulcimers are left completely unfinished. Rubbing fine wood with linseed oil or applying superb varnish finishes are options. Hand-rubbing and oiling or waxing can take hundreds of hours to fill the wood pores. Application of a sealer followed by wax will produce a similar appearance with less labor.
Quality Control
As with all handmade products, quality control is in the hands of the maker. The end result of the dulcimer maker's craftsmanship is considered from the conception of the instrument forward, and many careful hours are spent in achieving a final product that is as beautiful as intended. Quality control may also be in the ear of the beholder; the craftsman's care will be evident in the sound the instrument produces.
The Future
Renewed interest in folk music has awakened the interest of hobbyists and musicians in dulcimers. The instrument is easier to play than more sophisticated instruments that require long hours of training and practice. Dulcimer-making kits are available from a number of suppliers.