在西欧封建社会中，居封建制度中心地位的是 A．罗马天主教廷 B．封建国王 C．查

根据短文内容，选择最佳选项。

       The Eiffel Tower is an iron tower built on the Champ de Mars beside the River Seine in Paris. It's a

famous building in the world. The tower is the second-highest structure in France. It is the tallest structure

in Paris and among the most recognized (公认的) symbols of France. It was designed and built by the

French civil engineer Alexander- Gustavo Eiffel for the Paris World's Fair of 1889. Named after its

designer, engineer Alexander- Gustavo Eiffel. The tower stands 300 m (986 ft) high, which is about 75

stories. It is made of iron and it is about 700 tons in weight. There're 1665 steps to the top. It took 300

workers 2 years to complete it. It was finished in 1889. it is a premier(首要的) tourist destination, with

over 5.5 million visitors per year. Nobody will miss the chance to visit it when he arrives in Paris.

1. From the passage, we learn that ________.

A. The Eiffel Tower is the tallest structure in the world.

B. The Eiffel Tower is the most recognized symbols of France.

C. The Eiffel Tower was designed and built by an actor.

2. The Eiffel Tower was built for _________.

A. the Paris World's Fair of 1889.

B. celebrating the National Day.

C. a President's birthday.

3. According to the passage, the workers started to build the Eiffel Tower in ________.

A. 1887  

B. 1889

C. 1891

4. The Eiffel Tower named after      ______

A. its designer, engineer Alexander- Gustavo Eiffel

B. a President's name.

C. a national hero's name

5. What's the means of the sentence "Nobody will miss the chance to visit it when he arrives in Paris."

A. Most people will visit the Eiffel Tower when they arrive in Paris.

B. Anybody will visit the Eiffel Tower when they arrive in Paris.

C. If they have chances to visit the Eiffel Tower nobody will miss it.

— Would you like some more tea? 

—           , please. [ ]

A．No more

B．Just a little

C．I've had enough

D．Yes, I would

华为提供的光纤方案有（）

A.单模定长光纤

B.多模定长光纤

C.长距离光缆

D.尾纤

关于血氧饱和度监测，正确的是：（）

A.监测前应评估病人身体状况、意识状态、吸氧流量

B.正常人血氧饱和度为90-98%

C.PaO₂与SaO₂成正相关

D.提高吸氧浓度可提高血氧饱和度，因此吸氧浓度越高越好

E.SaO₂＜60mmHg，PaCO₂＞50mmHg，提示呼吸衰竭

设置公安派出所应遵循什么原则？