氢气的燃烧产物是水，被认为是最清洁的燃料，ag氢气在bg氧气中燃烧，生成水的质量

发布时间：2017-05-01 13:20 │ 来源：www.tikuol.com

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问题：

氢气的燃烧产物是水，被认为是最清洁的燃料，ag氢气在bg氧气中燃烧，生成水的质量为 g；氢气的制备及燃烧的过程中会发生如下化学反应，反应的微观过程可用下图表示：

图一和图二所出现的物质中，共有种含有氢元素的化合物，参加反应的甲烷与生成水的物质的量比为

考点：单质和化合物纯净物和混合物氧化物同素异形体

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任务型阅读。

    Amanda is an American filmmaker and actress. She came to China three years ago to study Performance at
Beijing Film Academy. Last month, she moved to Japan to study Economics at the University of Tokyo. On June
10th, She returned to the USA. She chatted with her parents about the cultural differences between the two
countries.
    "The people in both countries are very friendly to foreigner. But they have different cultures. For example,
when I spoke Chinese in China, the people there always showed surprise on their faces. But when I came to
Japan, I found it was opposite. Most local people there hoped I could talk with them in Japanese, though I was
not good at it," she said.
    Amanda thought this might have something to do with the fact that the western group in Japan is older than
the one in China. They have stayed in Japan for a long time. And most of them speak Japanese well. But
Westerners in China are still quite a new group. They're usually treated as guests and tourists.

阅读短文，完成下面表格，每空一词。

	In Japan	In China
Time Amanda spent	About one month	About 1 years
Subjects Amanda 2	Economics	Performance
Different 3	The Japanese expected the Westerners to speak Japanese.	The Chinese felt 4 when the Westerners spoke Chinese.

The reason of the
cultural difference

The western group in China is 5 than the one in Japan.

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关于现浇钢筋混凝土板式楼板的说法，错误的是( )。

A．单向板的板厚一般为跨度的1/40～1/35，且不小于80mm
B．长短边比值大于或等于2且小于3时，一般按双向板设计
C．悬挑板只有一边支承，其主要受力钢筋摆在板的下方
D．房屋中跨度较小的房间及雨篷、遮阳等常采用现浇钢筋混凝土板式楼板

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从形态上看，细菌可分为三类：________、_________和__________。细菌不论任何形态都是_____细胞的，无_______的细胞核。

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我国《中小学教室换气卫生标准》规定教室内空气中CO最高允许浓度为（）

A.0.05%（500ppm）

B.0.10%（1000ppm）

C.0.15%（1500ppm）

D.0.20%（2000ppm）

E.0.25%（2500ppm）

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在执行过程中，如果案外人对执行标的提出书面异议，人民法院经审查认为理由成立，则裁定( )。

A．撤销原裁判文书

B．中止执行

C．先予执行

D．财产保全

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