当室内地面垫层为碎砖或灰土材料时，其水平防潮层的位置应设在[]

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问题单项选择题

A.垫层高度范围内

B.室内地面以下-0.06m处

C.垫层标高以下

D.平齐或高于室内地面面层

答案

参考答案：D

阅读理解

阅读理解，根据对话回答问题。

Chen: What are you going to do this weekend?

Sarah: I'm going to plant trees.

Chen: Plant trees?

Sarah: Yes, I need some plants. So I'm going to the plant shop. What else? Let me see...

Chen: Are you going to use any books?

Sarah: Yes. I'm going to the bookstore. I'm going to buy a magazine about plants.

Chen: That's great!

Sarah: I want to be a science teacher one day!

1. What is Sarah going to do on the weekend?

She is going to .

2. Where is Sarah going to buy the plants?

3. What is Sarah going to buy in the bookstore?

She is going to .

4. What does Sarah want to be in the future?

She wants to be .

判断题

进行推土作业时，铲斗底板应平行于地面，并且可置于卸载状态。