HLA多态性

阅读理解。

     Families in different countries are different. Most American families are smaller than the families in

other countries. Most American families have one or two parents and two or more children each.

     Children in the US will leave their parents' home when they grow up. They usually live far from their

parents because they want to find good jobs. They often write to their parents or telephone them. And

they often go to visit their parents on holidays.

     Parents usually let their children choose their own jobs. Americans think it is important for young people

to decide on their lives by themselves.

     Today, the families in China are also small. Most Chinese families have one or two parents. But each

family can only have one kid, except the twins.

     When the kids in China grow up, some of them may live far from their parents because they want to

find good jobs, some of them may live with their parents because they don't want to make their parents

feel lonely.

     Some of the parents in China don't let their children choose their own jobs. They choose the jobs for

their kids. Most of them think they can give their kids a better future. It's not good for young people.

1. How many children may an American family have?

A. One.

B. Only two.

C. More than three.

D. Two or more.

2. In ______, some of the kids may live with their parents when they grow up.

A. the US B. China

C. America and China

D. all countries

3. The parents in ______ let their kids choose their own jobs.

A. America

B. China

C. England

D. America and England

土地的社会主义公有制包括（）。

A.全民所有制

B.社会主义制

C.劳动群众集体所有制

D.初级阶段公有制

E.一高级阶段公有制

钳夹止血法适用于（）。

A.没有骨关节损伤的前臂或小腿出血

B.全身各部位，尤其用于四肢的止血

C.深部伤口出血，如肌肉、骨端等

D.加压包扎难以控制的肢体大出血

E.损伤部位可视的破裂血管

在培训的印刷材料中，( )可以使包含许多复杂步骤的任务简单化。

A．工作任务表
B．岗位指南
C．培训者指南
D．学员手册

（）是银行的最重要的职能，也是现代银行科学管理的核心内容。

A、存款管理

B、投资管理

C、风险管理

D、贷款管理