机体对创伤或感染代谢反应不同于禁食代谢反应的主要特点是A．机体能量消耗减少B．处理葡

阅读简答：阅读下面短文，简要回答文后问题。

     History is the story of us, human beings. Everyone who has lived and everything that has happened are

part of history. But history is not only what happened in the past. The word also means the study of the past,

through old written records and other kinds of facts.

     Why do we study history? One reason is that we enjoy it. A good story is even better if it is true, and

history is full of good stories, though they can be terrible too. A more serious reason is to understand ourselves

and the world we live in. To understand events happening now, we need to know their causes. We cannot

understand the present if we know nothing about the past. History helps to explain why things are the way they

are.

     Of course, history books cannot tell us everything about the past, not even everything that is recorded. A

history of the world has to pick out the people and events that changed the world.

     Since ancient times, great civilizations have appeared in different countries and regions. Usually, only three

or four existed at the same time. While they lasted, they changed the lives not only of their own people, but of

their neighbors too.

注：(1) civilizations 文明 (2) exist 存在 (3) region 地区

1. What is history?

     __________________________________________________________

2. How do we study history?

    __________________________________________________________

3. Why do we study history? Please give two reasons. 

    __________________________________________________________

    __________________________________________________________

4. What have appeared in different countries and regions since ancient times? 

    __________________________________________________________

5. What title can you give to the passage? 

    __________________________________________________________

信号把钩工在交接班时，必须按规定时间在（）进行交接。

A、调度室

B、工作现场

C、会议室

以下关于项目基地通道出口位置的描述哪一项是错误的( )。

A．距大中城市主干道交叉口的距离，自道路红线交叉点起不应小于70m

B．距非道路交叉口的过街人行道边缘距离不应小于5m

C．距公共交通站台边缘不应小于5m

D．距公园、学校的出入口不应小于20m

对于一位管理人员来说，制定工作和时间计划是最为重要的技能之一。这不仅仅是指能够完成工作，其中还包括（）。

A、以上内容都包括

B、对你的工作加以控制

C、减少救急的次数

D、分清任务的主次

聚合物掺加量一般为水泥重量的（），使用的聚合物一般为合成橡胶乳液。

A.5%~20%

B.5%~10%

C.15%~20%

D.20%~30%