I can pick apples than you . A.many B.much C.more D.most 查看更多

 

题目列表(包括答案和解析)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。
A. Goods for auction (拍卖) sales
  B. Definition of bidding
  C. Way to sell more goods by auction
  D. Auction sales in history
  E. Brief introduction to auctions
  F. Making a larger profit as an auctioneer
【小题1】______
Auctions are public sales of goods, conducted by an officially approved auctioneer. He asks the crowd assembled in the auction-room to make offers, or “bids”, for the various items on sale. He encourages buyers to bid higher figures, and finally names the highest bidder as the buyer of the goods. This is called “knocking down” the goods, for the bidding ends when the auctioneer strikes a small hammer on a table at which he stands.
【小题2】 ______
The ancient Roman probably invented sales by auction, and the English word comes from the Latin auction, meaning “increasing”. The Romans usually sold in this way the goods taken in war. In England in the eighteenth centuries, goods were often sold “by the candle”: a short candle was lit by the auctioneer, and bids could be made while it stayed alight.
【小题3】 ______
Practically all goods whose qualities vary are sold by auction. Among these are coffee, skins, wool, tea, furs, silk and wines. Auction sales are also usual for land and property, furniture, pictures, rare books, old china and similar works of art.
【小题4】 ______
An auction is usually advertised beforehand with full particulars of the articles to be sold and where and when they can be viewed by potential buyers. If the advertisement cannot give full details, catalogues are printed, and each group of goods to be sold together, called a “lot”, is usually given a number. The auctioneer need not begin with Lot 1 and continue in the order of numbers: he may wait until he notices the fact that certain buyers are in the room and then produce the lots they are likely to be interested in.
【小题5】 ______
The auctioneer’s services are paid for in the form of a percentage of the price the goods are sold for. The auctioneer therefore has a direct interest in pushing up the bidding as high as possible. He will not waste time by starting the bidding too low. He will also play on the opponents among his buyers and succeed in getting a high price by encouraging two business competitors to bid against each other.

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多选题:
A quadrilateral that can be inscribed in a circle is also called a cyclic quadrilateral.Which of these quadrilaterals are always cyclic________.
A.parallelograms kites   B.isosceles trapezoids     C.rhombuses        
D.rectangles        E.squares.
圆内接四边形又称为联圆四边形,下列是联圆四边形的有________
A.平行四边形;B.等腰梯形;C.菱形;D.矩形;E.正方形.

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把下列各数填入相应的大括号里,并用“<”将各数连接起来.
9
2
,-3,0,-2.5,1,15%,-
1
6
,-2012,18.3
整数集:{                    …}
分数集:{                     …}
负数集:{                    …}.

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为建设社会主义新农村,节约能源,决定在部分农村率先修建一批沼气池.某村共有264户村民,村里得到政府34万元的补助款,不足部分同由村民集资.修建A型、B型沼气池共20个.两种沼气池每个的修建费用、修建用地、可供使用的户数情况如下表:
沼气池 修建费用(万元) 修建用地(m2/个) 可供使用的户数(户/个)
A型    3     48     20
B型    2     6     3
已知政府只批该给村沼气池修建用地708m2,设修建A型沼气池x个,修建两种沼气池共需费用y万元.
(1)求y与x之间的函数关系式;
(2)不超过政府批给该村沼气池修建用地,又要使该村每户村民都用上沼气的修建方案有几种?
(3)若平均每户村民自筹资金700元,能否满足所需要费用最少的修建方案?

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26、有一个多项式,它的中间项是8ab,前后两项被墨水污染了看不清,请你把前后两项补充完整,使它成为完全平方式(要求写出两种不同方法).
多项式:(  )+8ab+(  )

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