根据图片，补全对话。1. A: Whatgamedotheyoftenplay?_爱下问搜题

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问题补全对话，情景问答

根据图片，补全对话。

1.	A: What game do they often play? B: _____________________________.
2.	A: _____________________________? B: It's mine.
3.	A: _____________________________? B: He will play table tennis.
4.	A: Where is Jack going? B: _____________________________.
5.	A: _____________________________? B: She needs flour, butter and sugar.
6.	A: Where is she from? B: _____________________________.
7.	A: _____________________________? B: Yes, he will.
8.	A: _____________________________? B: My favorite basketball player is Yao Ming.
9.	A: What time will the class start? B: _____________________________.
10.	A: _____________________________? B: Four to five times a week.

答案

1. They often play basketball.

2. Whose bag is this?

3. What will he do?

4. He is going to the Great Wall.

5. What does she need to make a sandwich?

6. She is from China.

7. Will he go swimming?

8. Who is your favorite basketball player?

9. At 8 o'clock.

10. How often do you watch TV?

单项选择题

某折线型滑面滑坡体由2块组成，两块滑动体的重力分别为G₁=12000kN，G₂=15000 kN，滑动面倾角分别为β₁=38°，β₂=25°；滑动面内聚力分别为C₁=C₂=15kPa；滑动面内摩擦角分别为ψ₁=18°，₂=20°，滑动面的底面积分别为A₁=100m²，A₂=110m²。如果滑坡推力安全系数取1.2，在第二块滑块前设重力式挡墙，挡墙受到的水平向作用力为（）。

A．2045kN

B．4387kN

C．4840kN

D．5180kN

多项选择题

当（）时易发生前刀面磨损。

A.切削塑性材料

B.切削速度较高

C.切削厚度较大

D.切削深度较大