（）是整个移动智能网的核心，主要包括移动业务控制功能和业务数据功能两个功能模块。

HTTP消息由（）和（）组成。

如图所示，虚线区域内存在着电场强度为E的匀强电场和磁感强度为B的匀强磁场，已知从左方水平射入的电子穿过这一区域时未发生偏转，设重力忽略不计，则这区域内的E和B的方向可能是下列叙述中的

①E和B都沿水平方向，并与电子运动方向相同

②E和B都沿水平方向，并与电子运动方向相反

③E竖直向上，B垂直纸面向外

④E竖直向上，B垂直纸面向里．

A．①④

B．②④

C．①②③

D．①②④

土壤磷素对植物具有最大有效性的PH值是（）。

A.＜6

B.＞8

C.6.0-7.5

D.＞9

阅读表达。

     A teacher is a person who plays the most important role in the develoment of human beings. The future

of any student depends on the qualities (品质) and dedication (贡献) of a teacher. It is a famous saying that

"A teacher is like a light-house which shows the right path to people in darkess". So to be a teacher is in fact

a great responsibility and it's not easy.

     A good teacher, first of all, must like working with people. He or she must have a great enthusiasm for

the subject being taught-even if you aren't a great expert in a special subject, you can still teach it well if you

enjoy teaching knowledge and are good at communicating with other people.

     As far as nature is involved, the one quality a good teacher must have is patience. You must never be angry

with students because they don't understand something or _____. You must have a sense of humor and create

an atmosphere where everyone knows they can ask questions, try out new ideas and maybe make mistakes.

     Finally, a good teacher must be in charge of the class. It's very good if the students decide some aspects of

how learning takes place, what they learn etc., but the classroom is a much happier and more interesting place

if everyone knows that the teacher is a professional (专业人才), who knows what he is doing and can be

trusted (信赖) to run the lesson effectively. It's the teacher's responsibility to keep the class going. So a good

teacher should be good at dealing with all kinds of situations in class.

1. What is the best title for the passage? (Please answer within 10 words.)

    _______________________________________________________________________________________

2. Which sentence in the passage can be replaced by the following one?

    A teacher must be patient with his students, which is the first imprtant quality of a good teacher.

    _______________________________________________________________________________________

3. Please fill in the blank in the third paragraph with proper words or phrases to complete the sentence. (Please

    answer within 10 words.)

    _______________________________________________________________________________________

4. Accoding to the passage,what qualities should a good teacher have? (Please answer within 30 words.)

    _______________________________________________________________________________________

5. Translate the underlined sentence in the second paragraph into Chinese.

    _______________________________________________________________________________________

沼气可作为化工原料生产（）。

A.甲醇

B.甲醛

C.三聚氰胺

D.四氯化碳