疫情报告是传染病管理的重要组成部分，也是有关机构及人员的法定职责和义务，法定疫情责任

(12分)(1)1 mol分子组成为C₃H₈O的液体有机物A，与足量的金属钠作用，可生成11.2 L氢气(标准状况)，则A分子中必有一个____________基，若此基在碳链的一端，则A的结构简式为________________．

(2)A与浓硫酸共热，分子内脱去1分子水，生成B.B的结构简式为____________．

B通入溴水能发生反应，生成C.C的结构简式为___________．A在有铜作催化剂时，与氧气一起加热，发生氧化反应，生成D.D的结构简式为________        ．

(3)写出下列指定反应的化学方程式：

①A―→B__________________________________________________；

②A―→D____________________________________________________.

阅读理解。

     "My kids really understand solar and earth-heat energy," says a second-grade teacher in Saugus,

California. "Some of them are building solar collectors for their energy course." These young scientists

are part of      City Building Educational Program (CBEP), a particular program for kindergarten through

twelfth grade that uses the stages of city planning to teach basic reading, writing and math skills and more.

     The children don't just plan any city. They map and analyze (分析) the housing, energy, and

transportation requirements of their own district and foretell its needs in 100 years. With the aid of an

architect (建筑师) who visits the classroom once a week, they invent new ways to meet these needs

and build models of their creations. "Designing buildings of the future gives children a lot of freedom,''

says the teacher who developed this program. "They are able to use their own rich imagination and

inventions without fear of blame, because there are no wrong answers in a future context. In fact, as the

class enters the final model-building stage of the program, an elected 'official' and 'planning group' make

all the design decisions for the model city and the teacher steps back and becomes an adviser.

     CBEP is a set of activities, games and imitations that teach the basic steps necessary for

problem-solving: observing, analyzing, working out possible answers, and judging them based on the

children's own standards.

1. The program is designed to________.

A. direct kids to build solar collectors

B. train young scientists for city planning

C. develop children's problem-solving abilities

D. help young architects know more about designing

2. An architect pays a weekly visit to the classroom to ________.

A. find out kids' creative ideas      

B.  help kids with their program

C.  discuss with the teacher          

D.  give children a lecture

3. The children feel free in the program because ________.

A. they can design future buildings themselves

B. they have new ideas and rich imagination

C. they are given enough time to design models

D. they need not worry about making mistakes

不走封闭僵化的老路不走改旗易帜的邪路。

如果家庭突遇停电之后应注意哪些防火问题？

胆红素在血中运输形式