额窦引流不畅的主要原因是（）。 A.额隐窝气房过度发育 B.鼻丘气房过度发育 C.H

定额计价的工程量计算规则与工程量清单计价规范的工程量计算规则的本质区别是 ( )。

A．每个分项工程项目所含内容多少不一样
B．单价与报价组成不一样
C．定额计价未区分施工实体性损耗和施工措施性损耗
D．清单计价一般以实体的净尺寸计算，没有包含工程量合理损耗

动词填空（共10题，每小题0.5分，共5分）

1. The 8,892-kilometre-long border is said to be the longest border in the world not __________ (defend) by an army

or the police.

2. I am sure that the people in the disaster areas are on their way to__________ (live) a better life.

3. With all the cartoon books I needed__________ (buy), I left the bookstore.

4. The little girl, who has been spoiled has got used to __________(offer) everything she needs.

5. After getting lost, the hiker spent several days walking through wild, lonely countryside before__________.(find)

6. It is such a small problem that it is hardly worth __________ (trouble) about.

7. I’d be the first__________ (admit) that I might be wrong.

8. One aim of genetically modified research is__________ (produce)food which will make us healthier.

9. At first he refused to accept any responsibility but he ended up __________.(apologize)

10.__________(expose)to lead does great harm to children’s learning ability.

在Mapleson系统中，控制呼吸时重复吸入最少，新鲜气流利用效率最高的是（）

A.MaplesonA

B.MaplesonB

C.MaplesonC

D.MaplesonD

E.MaplesonE

( )考虑各种能够满足需要的解决方案，建立一个合适的模型辅助理解问题、辅助求解、测试求解的可能性。

A．实施阶段

B．选择阶段

C．设计阶段

D．信息阶段

（4分）有一游标卡尺，主尺的最小分度是1mm，游标上有20个小的等分刻度。用它测量一小球的直径，如图甲所示的读数是     mm。用螺旋测微器测量一根金属丝的直径，如图乙所示的读数是     mm。