《水浒传》中“丧门神”指的是（）

现有12个队参加篮球比赛，采用分组循环，分A、B两组，每小组需要进行多少场比赛并将一个组的单循环轮次排列出来。

B

When a Swedish ship that sank in 1628 was recovered from the port of Stockholm, historians and scientists were overjoyed with the chance to examine the remains of the past. The ship construction showed how ships were built and operated during the seventeenth century. In this way, artifacts, objects made by human beings, provided a picture of daily life almost 400 years ago.

Underwater archaeology –the study of ships, aircraft and human settlements that have sunk under large bodies of water—is really a product of the last 50 years. The rapid growth of this new area of study has occurred because of the invention of better diving equipment. Besides the Swedish ship

wreck(残骸), underwater archaeologists have made more exciting discoveries such as the 5,000-year-old boats in the Mediterranean Sea.

Underwater archaeology can provide facts about the past. In ancient ports all over the world are ships sunken in the past 6,000 years. There are also sunken settlements in seas and lakes telling of people’s way of life and their systems of trade in ancient times. Underwater archaeologists want to study these objects to add to the world’s knowledge of history , but they have to fight two enemies. One enemy is treasure hunters who dive for ancient artifacts that they can sell to collectors. Once sold, these objects are lost to experts. The second enemy is dredging machines (挖掘机)often used to repair ports. These machines destroy  wrecks and artifacts or bury them deeper under sand and mud. By teaching the public about the importance of underwater “museums” of the past, archaeologists are hoping to get support for laws to protect underwater treasures.

59．What purpose does Paragraph 1 serve in the passage?

A．To provide background information of the topic.

B．To attract readers’ attention to the topic.

C．To use an example to support the topic.

D．To offer basic knowledge of the topic.

60．The aim of underwater archaeology is to___________.

A．exploit water bodies

B．search for underwater life

C．study underwater artifacts

D．examine underwater environment

61．Underwater archaeologists are worried because___________.

A．sea hunters have better diving equipment

B．their knowledge of world history is limited

C．dredging machines cause damage to the ports

D．sold artifacts can hardly be regained for research

62．What is the main purpose of the passage?

A．to introduce a young branch of learning.

B．To discuss the scientists ’ problems.

C．To explain people’s way of life in the past.

D．To describe the sunken ships.

开挖一般土质10m支线杆杆坑质量标准，深度允许偏差为、深（）mm。

A、200

B、250

C、100

D、150

( )不是钢电弧焊时氢的来源。

A．锈中结晶水

B．焊件和焊丝表面的油污

C．焊条药皮和埋弧焊剂中的水分

D．母材和焊丝中的氢

1号《私募投资基金合同指引》适用于（）基金。

A、开放式

B、公司型

C、合伙型

D、契约型