阅读理解。
Tower Bridge is one of London's most well known landmarks. Opened in 1894, this hydraulic (液压的)
bridge can be raised to permit river traffic to pass underneath.
Visitors to Tower Bridge can enjoy wonderful views of the River Thames from the bridge towers. There
is also a museum which explain how the bascule bridge operates and discusses its history. Tower Bridge is
often incorrectly referred to as London Bridge. London Bridge, however, is a different bridge that is located
directly upstream from Tower Bridge.
The British Museum is a "must do" for all visitors to London England. Treasures from around the world
can be found in Britain's largest and most popular museum. To top it off, admission to the British Museum is
free of charge.
Due to the enormous size of the museums, visitors should prioritize what they wish to see. One "must see"
is the Rosetta Stone-a key puzzle piece in the recorded history of humankind. The British Museum is located
in the Bloomsbury district of London in London WC1.
Greenwich Park is a beautiful large park located a few kilometers away from the centre of London.
Attractions in Greenwich include the Cutty Sark, the Gypsy Moth and the Old Royal Observatory. A painted
line at the observatory indicates zero degrees of longitude (经度).
Many visitors to Greenwich enjoy having their photos taken with one leg in the western hemisphere (半球)
and the other in the eastern hemisphere. Greenwich is the place where time was officially tracked-"Greenwich
Mean Time" or "GMT".
Greenwich is located in London SE10.
The Eurostar high - speed train service provides fast connections between London and Paris and London
and Brussels. The Eurostar trains pass through the 32-mile Channel Tunnel under the English Channel. The
tunnel is also known as the "Euro Tunnel" or "Chunnel". The Channel Tunnel is considered to be one of the
world's great engineering wonders. Trains leave form the Waterloo Rail Station which is located in south
London.
1. If a tourist doesn't have any money on him, which of the following can he do?
A. Visit Tower Bridge.
B. Visit the British Museum.
C. Go around Greenwich Park.
D. Take a Eurostar high-speed train.
2. Where can we find the attraction of the Cutty Sark?
A. On London Bridge.
B. In the Old Royal Observatory.
C. In the British Museum.
D. In Greenwich Park.
3. What can we learn from the passage?
A. Tower Bridge can be raised mainly to let the water flow faster.
B. The British Museum is the largest museum in the world.
C. Greenwich Park is where the western hemisphere and the eastern hemisphere meet.
D. The Eurostar train can take people from London to many cities in Europe directly.
4. In what web page do you think the passage is probably found?
A. International news.
B. Study abroad.
C. Tourist Information and Travel Guide.
D. Art of architecture.
.074 n m 
化128g，则Y一空气燃料电池理论上消耗标准状况下的空
（2）酸，NH4+＋H2O
NH3·H2
O＋H+
（4）
（5）112