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填空题运行XY.PRG程序后，将在屏幕上显示如下乘法表：
4)4 8 12 16
5)5 10 15 20 25
6)6 12 18 24 30 36
7)7 14 21 28 35 42 49
8)8 16 24 32 40 48 56 64
9)9 18 27 36 45 54 63 72 81
请对下面的程序填空：
***计算乘法XY.PRG***
SET TALK OFF
FORJ=1 TO9
STR(J,2+’)’
RETURN FOR K=A TO J, STR(J*K,F) (注：其中的K可以是其他字母)
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热门相关试卷
最新相关试卷From Wikipedia, the free encyclopedia
has the longest central span of any suspension bridge.
The world's longest suspension bridges are listed according to the length of their main
(i.e. the length of suspended roadway between the bridge's towers). The length of main span is the most common method of comparing the sizes of , often correlating with the height of the towers and the engineering complexity involved in designing and constructing the bridge. If one bridge has a longer span than another it does not necessarily mean that the bridge is longer from shore to shore (or from
to abutment).
Suspension bridges have the longest spans of any type of bridge. , the next longest design, are practical for spans up to just over 1 kilometre. Therefore, the 17 longest bridges on this list are all currently the 17 longest spans of all types of vehicular bridges (other than floating ).
As of March 2017,
holds the record with its span of 1,991 metres (6,532 ft). The , currently under construction in , is expected to surpass it with a span of 2,023 metres (6,637 ft).
This list includes only completed suspension bridges that carry automobiles or trains. It does not include cable-stayed bridges, , or .
   
Year opened
1,080 (x2)
3,543 (x2)
1,080 (x2)
3,543 (x2)
(westbound)
(eastbound)
2,790 (x2)
庙嘴长江大桥
(east half of west span)
(west half of west span)
(northbound)
(southbound)
Most of the large suspension bridges built in recent years have been in the People's Republic of China. As the following list shows, most of the bridges under construction are also in China.
   
Year to open
杨泗港长江大桥
虎门二桥坭洲水道桥
洞庭湖大桥
虎门二桥大沙水道桥
龙门跨海大桥
泸定大渡河特大桥
驸马长江大桥
寸滩长江大桥
笋溪河特大桥
葫芦口大桥
2,133 (x2)
鹅公岩大桥
Spain to Morocco
Some designs have suspension spans of several miles. The suspension cables of a very long bridge might be suspended from the ends of cable-stayed struts extending diagonally from huge pylons. However, as of 2008, the feasibility of a
is being considered instead.
4,000 m (13,000 ft)
Bridge under planning
Will replace the ferry connecting Hareid and Sula, as well as being part of the national "Ferry-free E39" project. Expected start 2020 and finished 2024?
3,700 m (12,100 ft)
Bridge under planning
One of several proposals for crossing the 1,300-metre-deep (4,300 ft) fjord as part of making the E39 highway along Norway's west coast ferry-free. The bridge would utilize two towers 450 m tall and have a maximum clearance above water of 70 m. Plans call for the highway project, including this crossing, to finish by 2025.
to mainland Italy
3,300 m (10,800 ft)
The project was canceled on 11 October 2006 by the -led government amid controversy concerning the bridge's cost. The new government from 2008 led by
wanted to pick up the project again. Preliminary works were to begin in December 2009. The main construction was expected to begin in 2012. As of February 2013, the project has again been cancelled.
to , Indonesia
about 3,000 m (9,800 ft)
This project has been approved by the Indonesian government. If completed, it will not only be the world's longest suspension bridge (26 km), but will also have a main span of about 3,000 m (9,800 ft)—roughly fifty percent longer than the current record.
, Malaysia to , Indonesia
2,600 m (8,500 ft)
Preliminary work
Joint project between the Malaysian and Indonesian governments for a 48-kilometre-long (30 mi) crossing. Included is a suspension span of 2,600 m and a cable-stayed span of 1,200 m, making both longer than any existing in their category.
2,300 m (7,500 ft)
Plans under consideration
Will replace the ferry connecting the municipalities of
as well as being part of the "ferry-free E39" project. Unusually, the proposed design will have the roadway split around single column towers.
about 2,000 m (6,600 ft)
The bridge will replace a ferry, and reduce the driving time between
by 34 minutes.
about 2,000 m (6,600 ft)
Preliminary work
A suspension bridge is being considered to cross the 22.5-kilometre-wide (14.0 mi) . One design consists of four bridges strung together with four main spans of 2,000 m, two main-spans of 1,800 m, five anchorages and 10 towers. If completed this bridge will assume six of the top seven longest spans.
to mainland Chile
1,100 m (3,600 ft)
Preliminary work
This unusual design had two main spans of 1,055 m and 1,100 m without an anchorage between them. Construction was supposed to begin in 2007 and completed in 2012, but because of cost overruns, the project is now on hold.
Year became
longest span
62 m (203 ft)
Hemp-rope . Existence unproven. No longer standing.
137 m (449 ft)
Chain suspension footbridge south of Lhasa, built by . Reported by British spies to still be in use in 1878. Later (before 1904) fell into disuse after river course changed, swamping the northern end. Dynamited by Chinese soldiers after the
UK (Scotland, England border)
137 m (449 ft)
The oldest in the world still in use today.
176 m (577 ft)
Fribourg, Switzerland
271 m (889 ft)
The bridge was replaced by the
in the 1920s.
308 m (1,010 ft)
The longest deck span from 1849 until 1866, and the oldest vehicular suspension bridge in use in the United States.
US and Canada
317 m (1,040 ft)
The longest cable span from 1851 until it was destroyed by wind in 1864. However, the road deck span was only 258 meters long.
322 m (1,056 ft)
US and Canada
384 m (1,260 ft)
Replaced in 1899.
486 m (1,594 ft)
488 m (1,601 ft)
It was the longest suspension span but not the longest span of all bridges. The
with two spans of 521 m was longer.
497 m (1,631 ft)
It was the longest suspension span but not the longest span of all bridges. The
with a span of 549 m was longer. The first suspension bridge to have a concrete deck. The construction methods pioneered in building it would make possible several much larger projects to follow.
533 m (1,749 ft)
It was the longest suspension span but not the longest span of all bridges.
US and Canada
564 m (1,850 ft)
Since this bridge was built, the record for longest bridge span has only been held by suspension bridges.
1,067 m (3,501 ft)
The first span longer than 1 km.
1,280 m (4,200 ft)
1,298 m (4,259 ft)
1,410 m (4,630 ft)
1,991 m (6,532 ft)
The longest span since 1998.
The first main span longer than 1 mile (1.6 km).
(People's Republic of China) 2009 The highest bridge in the world (472 m).
. The widest bridge in the world (78.74 m) is also the most expensive bridge and the largest
ever constructed.
() 853 m—1950 and 2007. The pair of bridges with the longest spans in the world (853 m).
() 1997. The longest span carrying road and rail traffic, longest double deck span (1,377 m).
( – ). Suspension bridge with the most lanes of traffic (fourteen total on two levels).
(): The world's longest suspension bridge structure
(Japan): World's longest two-tiered bridge system (not all of the spans that make up the bridge system are suspension bridges)
(list of permanent wire spans)
Comparison of the side elevations of some notable bridges at the same scale.
Duan, Lian (2014). "Longest Bridges and Bridge Spans". In Chen, Wai-F Duan, Lian. . Boca Raton, Florida: . p. 1307.   2015 – via google books. The total length often reflects a project size, while the span length commonly correlates with the engineering complexity involved in designing and constructing of the bridge.
. Honshu-Shikoku Bridge Expressway Company Limited.
(in German). En.structurae.de.
. Storebaelt.dk.
. . 30 June .
. rki.kbs.co.kr.
(in Chinese).
(in German). En.structurae.de. .
(in German). En.structurae.de.
. .hk. Archived from
and . Aftenposten.no.
(in German). En.structurae.de.
. Hogakustenbron.nu. Archived from
(in German). En.structurae.de. .
. Hyundai Motor Group 2016.
. Structurae.
25 March 2009 at the .
. Honshu-Shikoku Bridge Expressway Company.
(in German). En.structurae.de.
VIROLA, J Eur Ing-FEANI (2008) [second quarter].
(PDF). Journal of the Association of Consulting Engineers Malaysia. ACEM: 16–17 2010.
. Dorman Long Technology.
(in German). En.structurae.de. .
(in German). En.structurae.de.
. Panynj.gov. Archived from
on 1 April 2009.
. Honshu-Shikoku Bridge Expressway Company.
(in German). En.structurae.de.
Sakowski, Eric.
(in German). En.structurae.de.
. Wsdot.wa.gov.
(in German). En.structurae.de. .
. Structurae.
. 中华人民共和国交通运输部.
. Honshu-Shikoku Bridge Expressway Company.
(in German). En.structurae.de.
(in German). En.structurae.de.
. Dot.ca.gov.
(in German). En.structurae.de.
(in German). En.structurae.de.
(in German). En.structurae.de.
. Dot.ca.gov.
(in Norwegian). . Archived from
on 27 September 2007.
(in German). En.structurae.de.
. Archived from
(in German). En.structurae.de.
. 普立文化旅游网 2016.
(in German). En.structurae.de.
. Delaware River Port Authority.
(in German). En.structurae.de.
(in German). En.structurae.de.
. Bridgemeister.
雷其霖 (). . 华龙网.
(in German). En.structurae.de. .
(in German). En.structurae.de.
(in German). En.structurae.de.
. . Archived from
on 27 May 2011.
. Delaware River Port Authority.
(in German). En.structurae.de.
(in German). En.structurae.de.
style="background:#F99;vertical-align:text-align:" class="table-no"|No .
(in German). En.structurae.de.
(in German). En.structurae.de.
(in German). En.structurae.de.
Xiaomeng, Li (December 2014).
(PDF). Changjiang Weekly. p. 4 2016.
. 10 March .
. CCCC Second Harbor Engineering Co., Ltd. 30 April .
(in Chinese). 23 Aug .
. BBC News. .
. Ft.com. .
. Bridgeweb. . Archived from
. Internet Archive 2014.
(PDF) 2014.
Gerner, Manfred.
(PDF). Center for Bhutan Studies.
Virola, Juhani. . Laboratory of Bridge Engineering (LBE), Helsinki University of Technology.
Denenberg, David. . .
. Guinness Book of World Records 2013.
. Guinness Book of World Records 2013.
Note: Some of the information posted on the following sites may differ from that above. As of 21 February 2006, the sites were out of date or inaccurate as noted in parenthesis
Denenberg, David,
(an extensive inventory of roughly 2,000 suspension bridges)
Janberg, Nicolas, , Structurae.de (an extensive database of structures including many suspension bridges)
Durkee, Jackson, , National Steel Bridge Alliance, 24 May 1999 (out of date)
, Archive.org copy of The Bridge over the Strait of Messina website (out of date and other errors)
, Pub Quiz Help (includes bridges that have not yet been completed)
, The Swedish Institute of Steel Construction, March 2003 (out of date)
Virola, Eur Ing Juhani, , Australian Academy of Technological Sciences and Engineering, ATSE Focus No 124, November/December 2002 (revised information up to date as of 2005)
Virola, Eur Ing Juhani,
Laboratory of Bridge Engineering (LBE), Helsinki University of Technology (includes bridges that have not yet been completed)
Podolny, Jr., W Goodyear, David (2006). "Cable-suspended bridges". In Roger L. Brockenbrough. Structural steel designer's handbook : AISC, AASHTO, AISI, ASTM, AREMA, and ASCE-07 design standards (4 ed.). New York, NY: McGraw-Hill. pp. 15.13–15.16.  .—includes a list of major suspension bridges by length
at the Honshū—Shikoku Bridge Expressway Co.
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