计件工资有多种形式，比较常见的有（） A.无限计件工资 B.成就工资 C.间接计件工

心脏泵血功能衰竭时最早且最明显发生改变的指标为（）

A.射血分数（EF.

B.心排血量（CO）

C.心脏指数（CI）

D.心脏储备功能

E.心搏指数（SI）

下列各句中，没有语病的一句是[ ]

A.很多企业都认识到，为了应对消费需求和竞争格局的变化，必须把改进服务提到与研发新产品同等重要的位置上。

B.一般人常常忽略的生活小事，作者却能够慧眼独具，将之信手拈来，寻找其叙述的价值，成为小说的有机组成部分。

C.在90后的青少年中，科幻迷越来越多，这显示了科幻文化正在崛起，是对长久以来孩子们缺失的想象力的呼唤。

D.数字化时代，文字记录方式发生了重大变化，致使很多人提笔忘字，从此以往，将影响到汉字文化能否很好的传承。

关于骨折愈合，正确的是

A．早期锻炼可促进骨折愈合

B．切开对位较手法复位准确，易于愈合

C．修复时尽可能多的保留游离的骨折块易于愈合

D．创口感染时，可以选择内固定便于愈合

E．骨折伤后7小时修复时，多采用二期愈合策略

混合喂养的婴儿饮食中，每日每公斤体重所需蛋白质量为()

A．4.5g

B．3.5～4g

C．3g

D．2～2.5g

E．1～1.5g

阅读理解

     What will people die of 100 years from now? If you think that is a simple question, you have not been

paying attention to the revolution that is taking place in biotechnology (生物技术).  With the help of new medicine, the human body will last a very long time.Death will come mainly from accidents, murder and

war.Today's leading killers, such as heart disease, cancer, and aging itself, will become distant memories.

      In discussion of technological changes, the Internet gets most of the attention these days.But the

change in medicine can be the real technological event of our times.How long can humans live? Human

brains were known to decide the final death.Cells are the basic units of all living things, and until recently,

scientists were sure that the life of cells could not go much beyond 120 years because the basic materials

of cells, such as those of brain cells, would not last forever.But the upper limits will be broken by new

medicine.Sometime between 2050 and 2100, medicine will have advanced to the point at which every

10 years or so, people will be able to take medicine to repair their organs.The medicine, made up of the

basic building materials of life, will build new brain cells, heart cells, and so on-in much the same way our

bodies make new skin cells to take the place of old ones.

     It is exciting to imagine that the advance in technology may be changing the most basic condition of

human existence, but many technical problems still must be cleared up on the way to this wonderful future.

1.  According to the passage, human death is now mainly caused by ________.

A.  diseases and aging  

B.  accidents and war

C.  accidents and aging  

D.  heart disease and war

2.  In the author's opinion, today's most important advance in technology lies in ________.

A.  medicine   

B.  the Internet

C.  brain cells   

D.  human organ

3.  Humans may live longer in the future because ________.

A.  heart disease will be far away from us

B.  human brains can decide the final death

C.  the basic materials of cells will last forever

D.  human organs can be repaired by new medicine

4.  How long can humans live in the future according to the passage?

A.  Over 100 years.

B.  More than 120 years.

C.  About 150 years.

D.  The passage doesn't tell us.

5.  We can learn from the passage that ________.

A.  human life will not last more than 120 years in the future

B.  humans have to take medicine to build new skin cells now

C.  much needs to be done before humans can have a longer life

D.  we have already solved the technical problems in building new cells