下列各组物质按单质、有机物、混合物顺序排列的是( ) A.氢气 乙醇 石油 B.

题型:选择题

问题:

下列各组物质按单质、有机物、混合物顺序排列的是(  )

A.氢气 乙醇 石油

B.生铁 碳酸钙 矿泉水

C.红磷 一氧化碳 空气

D.氨气 葡萄糖 冰水共存物

考点:单质和化合物
题型:选择题

读“我国某工业基地图”,回答下列问题:

(1)该图表示的是我国     工业基地。该工业基地在全国所处的地位和结构特点是     _________

(2)该工业基地的有利条件是:有丰富的煤、铁、          等资源,便利的     交通,图示范围还有    港和    港。其主要不利条件是缺乏   _____________

(3)图中a城的城市职能今后主要是作为     中心,限制     _________工业的发展,避免城市规模过大带来一系列问题。     

(4)b为该工业基地的主要工业中心  ___ (填名称),附近有  ____煤矿、  _____铁矿,有便利的铁路交通,其优势工业部门主要有   _________

(5)A油田为     油田。

题型:选择题
实验装置如图所示,A为两端开口的玻璃管,B为塑料片(质量不计),向管内缓缓注入硫酸铜溶液(ρ=1.2×103千克/米3),当塑料片恰要脱落时,管内液体的最大深度是(   )

A.12厘米

B.2厘米

C.10厘米

D.8厘米

题型:选择题

Imagine being the only person in the Forbidden City. You could stay there all day without swarms of people crowding around. You'd be able to look at the ancient treasures without worrying about other visitors pushing you for a better view. Well, in two years time you'll be able to have such an experience, just like the former emperors used to. The only difference is that your Forbidden City fun will be online.

Thanks to new technology, a virtual tour of the Forbidden City will be available online by 2008. The project - jointly driven by the Palace Museum and computer company IBM - aims to help teenagers around the world become more interested in Chinese culture. The project will offer an interactive, three-dimensional view of the palace. The virtual tour will provide images from all over the 780,000-square-metre palace.

"The Palace Museum is a big book; there are always places you haven't read about," said Hu Chui from the museum. There are many rooms closed for protection. But the virtual platform breaks the boundaries of time and space, meaning visitors can see whatever they want. "The interaction and games content in the virtual tour will attract more young people to understand and love our cultural heritage," added Hu.

In the virtual tour, historical figures will actually talk to visitors and answer their questions. The stories behind the buildings and treasures will also be told. "The online environment, presented in both Chinese and English, enables visitors to experience the culture and stories of the museum," said James Yeh, an IBM official.

小题1: If you visit the Forbidden City now, which of the following won’t be the case you’ll have?

A.It is crowed with a lot of visitors.

B.Visitors are pushing you for a better view.

C.You are the only person in it.

D.You can see some ancient treasures in it.小题2:Which of the following is not the advantage of the virtual tour of the Forbidden City?

A.Visitors can see whatever they want.

B.Visitor can ask and talk to historical figures.

C.Visitors can get to know the cultural heritage by playing games.

D.Visitors can walk around the Forbidden City with your family.小题3: The “project” underlined in paragraph 2 refers to ______.

A.a virtual tour of the Forbidden City

B.a new “Forbidden City” to be built by the Palace Museum and IBM computer company

C.an Internet cafe to be built in the Palace Museum

D.a big book to be published to introduce Chinese culture小题4:What attracts teenagers most to the virtual tour is _____.

A.the visible pictures in the place

B.the interaction and game playing

C.the online environment presented in English

D.the platform without the boundaries of time and space

题型:选择题

关于肝硬化的叙述中正确的是()

A.亚急性重症型病毒性肝炎多发展为门脉性肝硬化

B.病变特点是肝细胞坏死、纤维组织增生和假小叶形成

C.门脉高压症可表现为出血倾向

D.肝功能不全可表现为脾肿大

E.肝功能不全可表现为肾肿大

题型:选择题

我国最早的女史学家是谁?

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