下列关于氢气. 氧气. 二氧化碳三种气体的说法正确的是 [ ]

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问题选择题

A. 都具有可燃性

B. 均可用碱石灰(NaOH和CaO的混合物)干燥

C. 均是无色. 无味. 密度比空气小的气体

D. 实验室制取三种气体的化学反应属于三种不同的基本反应类型

答案

答案：D

阅读理解

根据短文内容回答问题

Mr. Ge lives in a small village（村子）named Shanqingge, but he works in a big city（城市）. He goes to work by train every morning and comes home in the same way.

This morning he reads his newspaper on the train, a man behind（在……后面）him says “Hello” to him and begins to talk to him, “Your life is boring, isn’t it? You take the same train every morning. You always take the same seat and read the same newspaper.” “How do you know all that about me?” Mr. Ge says angrily（生气地）.

“Because I always take the same seat behind you,” the man says.

小题1:Where does Mr. Ge live?

小题2:How does Mr. Ge go to work every day?

小题3:What does Mr. Ge often do on the train?

小题4:Does the man often take the same train to work?

小题5:把画线的句子翻译成汉语。

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判断题

因抢救急危患者未能及时书写病历时，有关医务人员应在抢救结束后12个时据实补记，并加以注明。

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