能否用掘进机截割头起吊各种物料，机体上堆放杂物？

为了避免吸入氧，包装过程中应注意哪些环节？

下列离子中外层d轨道达全充满状态的是 [ ]

A Cu⁺

B Fe³⁺

C Co³⁺

D Cr³⁺

Mexico City is truly one of the most amazing cities in the world with a mixture of both the old and new world. From the moment your plane starts to land in this vast city, you know that your trip will be quite an adventure.

Once in your taxi and the moment you leave the airport, you are amazed at the large amount of slow traffic. The volume of the traffic can be stressful to some.

The "Paseo de la Reforma (改革大道)", running southwest across the city, is one of the major tourist and business areas in Mexico City with many high quality hotels only walking distance from great restaurants and other tourist attractions. The only problem you will have is trying to see all of these sites during your vacation time.

One of the most popular attractions in this area is the National Museum of Anthropology along the northwest part of the street. There are thousands of artifacts on display showing the history of the area and numerous items found from the many Aztec sites in the area. Walking southwest from the museum, you will soon reach the Mexico City Zoo, which is a great place to spend an afternoon.

Across the street from the museum is the Chapultepec Castle, once an important site in the Mexican-American war. It's also a good idea to take the train up the hill to where the castle is located as the hill is steep (陡峭的). It's important to keep in mind that Mexico City is over 7,000 feet above sea level and some feel it difficult to breathe when walking.

You can take a taxi to the Coyoacan market during the evening on a weekend. It's a great place to get some cheap souvenirs to bring back home and to enjoy some traditional Mexican cuisine. However, you must be careful where you eat and that the meat is well cooked.

小题1:The tourists in Mexico City may not be satisfied with______.

A．the high speed of the traffic

B．the heavy traffic of the city

C．the polluted air in the city

D．their safety in the city小题2:From the third paragraph, we can learn that______.

A．the number of the city attractions can't meet the needs of the tourists

B．it is convenient for tourists to visit the city from where they stay

C．tourists have problems when visiting the sites in Mexico City

D．tourists often have their three meals in the high quality hotels小题3:Which of the following shows the correct positions of the following places?

P =" Paseo" de la Reforma           M =" the" National Museum of Anthropology

C =" the" Chapultepec Castle       Z =" the" Mexico City Zoo

小题4:Which of the following attractions may interest those who want to study the military (of the army) history of Mexico City?

A．The National Museum of Anthropology.

B．The Coyoacan market.

C．The Chapultepec Castle.

D．The Aztec sites.

在已批准的农用地转用范围内，具体建设项目用地可以由．（）批准。

A．县级人民政府

B．市、县级人民政府

C．国土资源部

D．国家土地管理部门

下列属于事业单位其他收入的是（）

A、财政专户核拨收入

B、投资收益

C、利息收入

D、捐赠收入