龋均等于（）。 A.DMFF之和÷患龋人数 B.DMFS之和÷受检人数 C.DMFT

窗体有三种视图，用于创建窗体或修改窗体的窗口是窗体的( )。

A．“设计”视图

B．“窗体”视图

C．“数据表”视图

D．“透视表”视图

根据国际私法的理论，下列哪个选项可以被当事人利用以达到规避法律的目的( )

A．合同缔结地

B．侵权行为地

C．婚姻举行地

D．当事人住所地

《论语》十则

子曰：“学而时习之，不亦说乎？有朋自远方来，不亦乐乎？人不知而不愠，不亦君子乎？”（《学而》）

曾子曰：“吾日三省吾身：为人谋而不忠乎？与朋友交而不信乎？传不习乎？”（《学而》）

子曰：“温故而知新，可以为师矣。”（《为政》）

子曰：“学而不思则罔，思而不学则殆。”（《为政》）

子曰：“由，诲女知之乎!知之为知之，不知为不知，是知也。”（《为政》）

子曰：“见贤思齐焉，见不贤而内自省也。”（《里仁》）

子曰：“三人行，必有我师焉；择其善者而从之，其不善者而改之。”（《述而》）

曾子曰：“士不可以不弘毅，任重而道远。仁以为己任，不亦重乎？死而后已，不亦远乎？”（《泰伯》）

子曰：“岁寒，然后知松柏之后凋也。”（《子罕》）

子贡问曰：“有一言而可以终身行之者乎？”

子曰：“其恕乎！己所不欲，勿施于人。”（《卫灵公》）

小题1:下列各组句子中划线词的解释不正确的一组是（  ）（3分）

A．学而时习之，不亦说乎（说话）

B．人不知而不愠（生气，发怒）

C．不知为不知，是知也（此，这）

D．士不可以不弘毅（刚强，勇毅）小题2:用现代汉语翻译下列句子。（3分）

温故而知新，可以为师焉。

小题3:文中有很多语句都已成为成语，请你写出其中的三个四字成语。（3分）

小题4:选出对选文理解不正确的一项（  ）（3分）

A．“学而不思则罔，思而不学则殆”阐述了学与思的辨证关系。

B．“温故而知新，可以为师矣”说明了新旧知识的关系。

C．“人不知而不愠，不亦君子乎”告诉我们应该有良好的修养和宽广的胸怀。

D．“择其善者而从之，其不善者而改之”说明人不必虚心求教，博取众长。

About 97% of the world's water is salty and is found in our oceans and seas. But, as we can't drink seawater, how can it be important?

Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important seawater is!

Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.

The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn't matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.

Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important seawater is!

小题1:People used to think that the rubbish thrown into the sea ________.

A．wouldn't harm the fish in the sea

B．would change the balance of the food chain

C．would be broken down in the sea

D．wouldn't do much harm to the sea小题2:From the passage, we learn that ________. 

A．most fish and sea animals live at the surface of the seas

B．it is very difficult to break the balance of a food chain

C．excessive fishing has caused the decrease in fish stock

D．it won't be long before the problems concerning oceans will be solved小题3:Which of the following is NOT a way being used to protect oceans?

A．The use of international agreements.

B．Forbidding fishing to protect fish stocks.

C．The use of new techniques.

D．Raising people's awareness of the need to protect oceans.小题4:What would be the BEST title of the passage?

A. The importance of seawater.

B. Life in the oceans.

C. How to protect food chains.

凡在坠落高度基准面2m以上（含）有可能坠落的高处进行的作业称为高处作业。