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精英家教網(wǎng) > 高中地理 > 題目詳情

【題目】下列說法中，不正確的是( )

A．SiO2和CO2都是酸性氧化物，均可與NaOH溶液反應(yīng)

B．水晶項鏈、石英鐘都是硅酸鹽制品

C．SiO2和CO2在一定條件下，均可與CaO發(fā)生反應(yīng)

D．SiO2不溶于水，而CO2可與水反應(yīng)，生成H2CO3

【答案】B

【解析】水晶項鏈、石英鐘的主要成分都是SiO2，不是硅酸鹽制品。

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下面短文中有10處語言錯誤。請在有錯誤的地方增加、刪減或修改某個單詞。

增加：在缺詞處加一個漏字符號（∧），并在其下面寫上該加的詞。

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When I was a very young children, my father created a regular practice I remember well years late. Every time he arrived home at end of the day ,we’d greet het at the door. He would ask who we was and pretend not to knowing us, Then he and my mother would have had a drink while she prepared dinner and they would talk about his day and hers. While they chat, my father would lift my sister and me up to sit in the top of the fridge. It was both excited and frightening to be up there！

My sister and I thought he was so cool for putting us there.

When I was a very young children,my father created a regular practice I r

Child emember well years late.Every time he arrived home at ∧end of the day ,

later the we’d greet herat the door.He would ask who we was and pretend not to knowing him were know us,Then he and my mother would have had a drink while she prepared dinner and they would talk about his day and hers.While they chat,my father would lift my sister and chatted