简述律师职业道德的概念和特征。

（14分）反应aA（g）+bB（g）cC（g）（H＜0）在等容条件下进行。改变其他反应条件，在I、II、III阶段体系中各物质浓度随时间变化的曲线如下图所示：

回答问题：

（1）反应的化学方程式中，a：b：c为        ；

（2）B的平衡转化率中最小的是     ，其值是       ；

（3）由第一次平衡到第二次平衡，平衡移动的方向是       ，采取的措施是        ；

（4）比较第II阶段反应温度（）和第III阶段反应速度（）的高低：  填“＞、＝、＜”判断的理由是                                             。

气水分离的作用是将进入充气柜的气和（）分离，使空气进入气罐，水通过电磁阀排出。

Passage Two

Children start out as natural scientists, eager to look into the world around them. Helping them enjoy science can be easy ;there’s no need for a lot of scientific terms or expensive lab equipment. You only have to share your children’s curiosity. Firstly,listen to their questions. I once visited a classroom of seven-year-olds to talk about science as a job. The children asked me" textbook questions" about schooling, salary and whether I liked my job. When I finished answering, we sat facing one another in silence. Finally I said, "Now that we’ve finished with your lists, do you have questions of your own about science"
After a long pause ,a boy raised his hand," Have you ever seen a grasshopper(蚱蜢) eat When I try eating leaves like that, I get a stomachache. Why"
This began a set of questions that lasted nearly two hours.
Secondly, give them time to think. Studies over the past 30 years have shown that, after asking a question, adults typically wait only one second or less tor an answer, no time for a child to think. When adults increase their" wait time" to three seconds or more, children give more logical, complete and creative answers.
Thirdly, watch your language. Once you have a child involved in a science discussion, don’t jump in with" That’s right" or" Very good". These words work well when it comes to encouraging good behavior. But in talking about science, quick praise can signal that discussion is over. Instead, keep things going by saying" That’s interesting" or" I’d never thought of it that way- before", or coming up with more questions or ideas.
Never push a child to" Think". It doesn’t make sense, children are always thinking, without your telling them to. What’s more, this can turn a conversation into a performance. The child will try to find the answer you want, in as few words as possible, so that he will be a smaller target for your disagreement.
Lastly, show;don’t tell. Real-life impressions of nature are far more impressive than any lesson children can learn from a book or a television program. Let children look at their fingertips through a magnifying glass, and they’ll understand why you want them to wash before dinner. Rather than saying that water evaporates, set a pot of water to boil and let them watch the water level drop.

In the last sentence of the first paragraph, the word " lists" could best be replaced by______.

A．any questions

B．any problems

C．questions from textbooks

D．any number of questions

接地母线

女孩，9岁，因发热、纳差11天入院，病程中有腹泻2～4次／天，为稀糊便，无黏液及脓血。体检：体温39℃，神清神萎，心、肺无异常，腹部稍胀，右下腹轻压痛，无肌卫及反跳痛，肝肋下2．5cm，脾肋下2cm。血象白细胞计数4．3×10／L，中性粒细胞0．78，嗜酸性粒细胞绝对计数为15×10／L；肥达反应O效价1：80，H效价1：160；肝功能ALT112U／L。

本案例中最有诊断意义的实验室检查是（）

A.复查肝功能

B.血培养

C.血凝溶试验

D.血沉

E.全胃肠道钡餐