毛石墙每一层水平方向间距（）左右要砌一块拉结石 A.0.5m B.1m C.1.5m

施工过程根据其性质和特点不同可分为制备类、运输类和建造类三种，以下（）施工过程一般不占有施工项目空间，也不影响总工期，不列入施工进度计划。

A.挖土方过程

B.门窗的制作过程

C.浇筑混凝土过程

D.预制梁制备过程

E.屋面防水过程

临床上最常见的心力衰竭是（）

A.右心衰继发左心衰竭

B.左心衰继发右心衰竭

C.右心衰竭

D.左心衰竭

E.全心衰竭

气相色谱法测定环境空气和废气中二硫化碳时，气相色谱的定量管以及与色谱柱连接的管均采用（）管

A.硅胶

B.厚壁橡胶

C.聚四氟乙烯

D.聚乙烯

疑为白喉患者的最佳取材部位是（）

A.淋巴液

B.血液

C.假膜深处

D.假膜边缘

E.假膜表明

CONVERSATION 2 (Questions 5-8)

The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.

CONVERSATION 2 (Questions 5-8)

The age when Miss Rowling started to write: (5) .
Miss Rowling considers herself very luck because she can (6) herself by writing.
Miss Rowling never really imagines a (7) audience when writing.
Miss Rowling (8) know where the ideas for the Harry Potter books came from.