| In everyday usage "hot" means "having a
lot of heat". Many people think that "cold" is something completely separated
from heat. But this is not true. "Cold" simply means "having little
heat". Your life depends on heat. In fact, every living thing depends on it. Without heat, every living thing would be frozen to death. All living things get their heat from the sun, which provides the conditions in which life is possible. Since before the dawn of history, man has been able to make his own heat. He has been able to release the sun’s heat that is trapped in things such as wood, coal, and oil. And he has been able to use this heat. Heat has made civilization possible. With heat, man could melt metals. As man learned to use metals and fuels, industries grew. As a result, engines were invented. These are machines that change heat energ A. man can get heat from things like wood, coal, and oil B. man cannot get the heat directly from the sun C. only wood, coal and oil have heat D. all the sun’s heat is trapped in things [简答题]大气污染物指的是什么
[单选题]差压阀是( )系统主要组成部分。
A.高压牵引 B.空气悬挂 C.网络控制 D.车端连接 [单项选择]小企业自助可循环贷款额度项下发生的单笔贷款最低起点为（）万元，并且为1万元的整数倍，各笔贷款余额总和不得超过可循环贷款额度。
A. 3 B. 5 C. 10 D. 20 [多项选择]目前可以向用户演示的3G产品有：（）
A. 可视电话 B. 手机电视 C. 手机音乐 [单项选择]提示标志牌的基本型式是一（）衬底牌和相应标志符号、文字，四周间隙相等。
A. 三角形 B. 圆形 C. 正方形 D. 菱形 [单项选择]对象模型描述现实世界中实体的对象以及它们之间的关系，表示目标系统的静态数据结构。在面向对象方法中，由（）实现。
A. 顺序图 B. 类图 C. 状态图 D. 组件图 [单选题]负荷测量一般在（）时进行，主要测量变压器二次侧的出口电压、电流，和中线电流，测量配电线路尤其是低压线路（接户线）末端，分支点的电压、电流。
A.夜间负荷 B.平均负荷 C.低谷负荷 D.高峰负荷 [单选题]新变换催化剂应当在活性温度( )中使用。
A.较低点 B.平均点 C.较高点 D.无法确定 [单选题]下列属于权力性影响力构成因素的是
A.品格因素 B.才能因素 C.资历因素 D.知识因素 E.感情因素 [单项选择]现场审核准备阶段的工作内容主要是（）
A. 组建审核组，任命审核组长 B. 编制审核计划和检查表 C. 确定审核的可行性 D. 与受审核方建立初步联系 [简答题]试述卢梭关于“遵循自然”的幼儿教育原则并就其中一个方面联系实际进行简单评价。
[单项选择]儿童营养性缺铁性贫血发生的最主要原因为（）
A. 先天铁储备不足 B. 铁摄入量不足 C. 生长发育快 D. 铁吸收障碍 E. 铁的丢失过多 [判断题]若有人触电，应马上前去拉开他。
A.正确 B.错误 [填空题]
·Read the text below about business on line． ·For each question(31-40)，write one word in CAPITAL LETTERS on your Answer Sheet． {{B}}
The Internet is changing the way people shop and purchase goods．It has created a new market with great opportunities for people running a small home-business and gives them a big edge over the typical retail establishment．Before．if a customer wanted to buy a stereo，for example，they had to jump into their car，go to a{{U}} (31) {{/U}}stores to see who has the best price，deal with the traffic and wait in long lines，then make the purchase．With the Internet，{{U}} (32) {{/U}}is done right from the comfort of the consumer’s home．They simply point＆click．There is{{U}} (33) {{/U}} limit to the amount of business that a web merchant can bring in from on-liue sales and it can be done right from your home．You are not 1imited to state [单项选择]在碱性条件下检查重金属，所用的显色剂是（）
A. 硫化氢（H2S） B. 硫化钠（Na2S） C. 硝酸银（AgNO3） D. 硫氰酸铵（NH4SCN） E. 氯化钡（BaC2l） [单选题]含碳量相同的普通钢与优质碳素钢按品质区分，主要区别在于 。
A.冶炼方法 B.含合金元素多少 C.含硫、磷量的高低 D.含铬量的高低 [单项选择]起自脊神经节的纤维是（ ）
A. 脊髓丘脑束 B. 薄束 C. 皮质脊髓侧束 D. 脊髓小脑前、后束 E. 红核脊髓束 [判断题]头车是基础车，中间车由头车演变而来。
A.正确 B.错误 [填空题]车钩闭锁位、开锁位、全开位总称为( )。
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