下列化学用语的书写正确的是 [] A．乙醇的分子式：C2H5OH B．氮气的电子

1799年法国雾月 * * 成功的主要原因是

A．督政府腐败懦弱且

B．拿破仑享有很高威望

C．混乱中的法国需要独裁者稳定秩序

D．得到外国势力支持

从下列材料中选取必要的信息，为“昆曲”下—个定义。(4分)

①昆曲糅合了唱念做打、舞蹈及武术的表演艺术。

②昆曲作为一种独特的曲唱艺术体系，曲词典雅、行腔宛转、表演细腻。

③昆曲以鼓、板控制演唱节奏，其主要伴奏乐器是曲笛、三弦等。

④昆曲在2001年被联台国教科文组织列为“人类口述和非物质遗产代表作”。

阅读理解。

     A British ship that sank during the American Revolution has been discovered at the bottom of

Lake Ontario.Surprisingly,the 22gun ship is wellpreserved in the cold,deep water.Explorers

announced the news recently.

     Kennard is an electrical engineer.He has been diving for nearly 40 years and has found more

than 200 wrecks(残骸) in the Great Lakes and other lakes or rivers.He began searching the

Ontario 35 years ago but quit after several dives.Six years ago,he began to work with Scoville,a

diver.Since then,the pair have found seven ships in the lake.Over the years,Kennard got licenses

and information,including the ship's design plans,from the British government.Even then,it took the

pair three years to search more than 200 square miles before they found the ship earlier this month.

     After locating the wreck with the sonal(声纳),the explorers used a submarine to confirm their

find.The 80foot ship is the only entire British ship ever found in the Great Lakes,Scoville and

Kennard said."To have a ship from the Revolutionary War that's nearly entire is unbelievable.It's

an archaeological miracle."They said the ship is still considered the property of the British Admiralty.

Although the ship sits in an area where the water is up to 500 feet deep and cannot be reached by

anyone but the most experienced divers,Kennard and Scoville refused to give its exact location with

care.They only said that it was found off the southern shore.

     The ship was discovered resting partially on its side.It went down on October 31,1780,with 60

British soldiers, a crew of about 40,mostly Canadians,and possibly about 30 American war prisoners.

The explorers also found two cannons and the ship's bell.

1．From the passage we learn that Kennard________.

A．has found over 200 wrecks in the Great Lakes

B．has kept searching the Ontario for 35 years

C．is both an engineer and an experienced diver

D．got to know Scoville when he was very young

2．Kennard and Scoville's discovery of the British ship ______.

A．cost them a lot of time and labor

B．needed a lot of experts's support

C．was forbidden by the government

D．was made completely by accident

3．We can infer from the text that Kennard and Scoville______.

A．will earn a great deal of money by selling the ship

B．will become world famous because of their find

C．may not have succeeded without modern technology

D．will be given a large reward by the American government

4．Kennard and Scoville refused to give the ship's exact location because________.

A．they did not know exactly where the ship was

B．they were afraid that something unexpected might happen

C．they wanted to keep it a secret forever

D．they thought it would be interesting for people to guess where it is

关于人工瓷牙正确的是（）

A.硬度大，咀嚼效率高

B.脆性大，易磨损

C.光泽好，不易变色

D.比塑料重

E.与基托结合较塑料牙差

按照我国《证券法》的规定，设立综合类证券公司必须具备的条件，包括（）。

A.注册资本最低限额为人民币2亿元 

B.主要管理人员和业务人员必须具有证券从业资格 

C.有固定的经营场所和合格的交易设施 

D.有健全的管理制度 

E.有规范的自营业务与经纪业务分业管理的体系