根据有关国内立法和国际公约，海员劳动合同中通常不包括（）方面的内容。A.海员的姓名、

蘑菇是由什么发育而来的[ ]

A．受精卵　　

B．孢子

C．种子 　　　　　

D．菌褶

下列属于生产性采购的有（）。

A.工具采购

B.零部件采购

C.燃料采购

D.生产设备采购

为降低5岁以下儿童死亡率而进行的健康教育项目的一级目标人群是（）。

A.婴幼儿母亲

B.婴幼儿

C.妇幼保健医护人员

D.乡村医生

E.儿科医生

不能直接用观察法得出的结论是

A．氯气是呈黄绿色的气体

B．氯气有强烈的刺激性

C．氯气有毒

D．氯水中含氯气分子

阅读理解

     Although there are many ways in which people communicate through speech, public speaking has

probably received more study and attracted more attention than any other. Politicians winning an

election, salespeople presenting products and etc. All depend upon this form of public communication.

Even people who do not make speaking a part of their daily work are often asked to make public

speeches: students at graduation, for instance, or members of churches, clubs or other organizations.

Nearly everyone speaks in public at some time or other, and those who perform the task well often

become leaders.

    There are many reasons for speaking in public. A public speaker may hope to teach an audience

about new ideas, or provide information about some topic. Creating a good feeling or entertaining an

audience may be another purpose.  Public speakers, however, most often seek to persuade an audience

to accept new opinions, to take certain actions, or to see the world in a new way.

    Public speakers usually know well in advance when they are scheduled to make a speech.

Consequently, they are able to prepare their message before they deliver it.  Sometimes, though,

speakers must deliver the message unprepared, or off the cuff, such as when they are asked to speak

at a wedding reception or to participate in an interview.

    When they do not have to speak unprepared, most speakers write their own speeches. Politicians

and business managers sometimes employ professional writers who prepare their speeches for them.

These professional writers may work alone or in small teams. Although the speaker may have some

ideas into the contents of the speech, the writers sometimes have a great influence over the opinions

expressed by their employers. Regardless of how a speech is prepared, the person who delivers it is

given credit for its effect upon its hearers.

1. Public  speaking  is well  known  to  average  people because ________.    

A. most of them have been trained as public speakers 

B. most of them have been audience of such activities

C. most of them have to do it when they study at college

D. the passage does not mention the reason

2. Which of the following is rarely the purpose of public  speaking?

A. To influence people's ideas and behaviour.

B. To persuade the audience to accept an idea.

C. To enjoy the satisfaction from one's own speech.

D. To develop public interest.

3. No matter who writes a speech, the audience ________. 

A. do not believe what the speaker says   

B. know very well whom the speaker is

C. know whose idea the speech really expresses

D. believe it expresses the speaker's idea