（）创造性地把社会主义荣辱观概括为“八荣八耻”。 A.邓 * * B.江 * * C.胡 * *

阅读理解。

     Food is very important. Everyone needs to eat well if he wants to have a strong body. Our minds

also need a kind of food. This kind of food is knowledge(知识).

    When we are very young,we start getting knowledge. Kids like watching and listening. Color pictures

especially interest them. When kids are older,they enjoy reading. When something interests them,they

love to ask questions.

    Our minds,like our bodies,always need the best food. Studying on our own brings the most knowledge.

    If someone is always telling us answers,we never learn well. When we study correctly(正确地)and

get knowledge on our own,we learn more and understand better.

1. Everyone needs to eat well because it can help people _______.

 A. to be healthy           

B. to study well    

C. to enjoy learning        

D. to have a happy life

2. Our bodies need _______.

A. books    

B. rice   

C. food        

D.  drink

3. We start getting knowledge _______.

A. when we are old      

B. when we are very young

C. when we are pupils    

D. when we are parents

4. How do kids get knowledge?

A. They watch.                  

B. They eat.

C. They listen to the teacher.  

D.  They just learn by themselves.

简述双相滴定法测定苯甲酸钠含量的原理。

下列各组词语中字形与加点字的读音，全都正确的一组是（　　）

A．惩罚chéng平添　　呼天抢地qiāng　　宽宏大量

B．友谊yì凑合荷枪实弹hé　万古常青

C．潜水qián　　睢鸠　　厝火积薪cuò　三番两次

D．刹那chà　　发轫　　　正当防卫dàng　挺而走险

慢性支气管炎可导致（）

A.支气管扩张症

B.支气管管腔狭窄

C.肺气肿

D.支气管性哮喘

试述F=nD式中各符号的意义。