常用CT影像后处理的方法是（）。 A.最大密度投影，曲面生组，骨

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问题单项选择题

常用CT影像后处理的方法是（）。

A.最大密度投影，曲面生组，骨算法重建

B.曲面重组，骨算法重建，双相增强CT扫描

C.最大密度投影，双相增强CT扫描，表面阴影显示

D.表面阴影显示，骨算法重建，曲面生组

E.曲面重组，表面阴影显示，最大密度投影

答案

参考答案：E

问答题简答题

某柱下方形基础边长4m，基底压力为300kPa，基础埋深为1.5，地基土重度为18kN/m³，试求基底中心点下4m深处的竖向附加应力。已知边长为2m的均布方形荷载角点和中心殿下4m深处的竖向附加应力系数分别为0.084和0.108。

句型转换

句型转换。

1. Li Ping has a Soccer ball. (变为一般疑问句)

_______ Li Ping _______ a soccer ball?

2. Does she have a CD? (做肯定回答)

_______, she _______.

3. He has a baseball bat. (变否定句)

He _______ _______ a baseball bat.

4. You have a volleyball. (一般疑问句)

_______ you _______ a volleyball?

5. The boy doesn't have a TV. (肯定句)

The boy _______ a TV.

6. I have a nice book. (改为否定句)

I _______ _______ a nice book.

7. He likes his new room. (改为一般疑问句)

_______ he _______ his new room?

8. Frank has four baseballs. (就画线部分提问)

_______ Frank _______?

9. My parents have five good friends. (就画线部分提问)

_______ _______ friends do your parents have?

10. Do your father and mother like sport? (做肯定回答)

_______, _______ _______.