从关系模式中指定若干个属性组成新的关系的运算称为 ______。A．连接 B．投影

请结合所给全部材料，从处理好政府与市场关系的角度，自拟题目，撰写一篇议论文。

要求：1．论点正确、鲜明，论据准确、充分，论证严密、合乎逻辑；

2．充分利用所给资料，思想性强；

3．结构完整，条理清晰，行文流畅；

4．篇幅在800～1000字。

下列国家中不是我国陆上邻国（或地区）的是（　　）

A．泰国

B．俄罗斯

C．阿富汗

D．尼泊尔

Do you know how to tell a story? The following are some tips:

Who Will Listen?

Will you tell your story to children of your own age? Will they be friends or young people you haven’t met before? Perhaps you will tell it to younger children．Or, will it be an audience of adults? Will it be just a few people, a small group, or a large audience?

Why Are You Telling It?

There are many reasons for telling a story．Knowing why you are telling it may be the most helpful reason for choosing a story for a particular audience．

Many storytellers choose tales just to entertain （娱乐）．They tell jokes or silly stories．Others want to teach something, such as how to be kinder to animals, the environment, or other people．One storyteller likes to encourage his listeners to try new things．Some babysitters tell stories to help children feel not afraid of thunder, lightning or scary shadows in their rooms．Others want to make people think or to help people remember．Some like to frighten their audiences with ghost stories．

Where Will You Speak?

How you tell your story and what story helpers you use depend on where you will be speaking．Will you be talking at an evening party, in your classroom, in a library storytelling program, at a family dinner, at a museum, at a storytelling festival, or during a religious program?

小题1:The author mainly shows his ideas by ______．

A．listing questions

B．describing

C．comparing

D．giving examples小题2:According to the author, when telling a story, you should pay attention to ______．

①the hobbies of the audience

②the jobs of the audience

③the age of the audience

④the size of the audience

⑤the reason for telling a story

A．①②③

B．②③④

C．③④⑤

D．①③④小题3:The purpose of knowing why you are telling a story is to ______．

A．choose stories suitable for a certain audience

B．do something good to animals, the environment or other people

C．decide what can help you

D．satisfy different listeners

简述测量装置误差的来源.

患者男性，32岁，因“间断头痛10年，加重伴视物成双2个月”入院。查体：体温37.1℃；意识清楚，言语清晰；双侧瞳孔等大等圆，对光反射灵敏；左侧眼球外展不能。入院后完善各项检查提示斜坡脊索瘤可能，行内镜下经鼻肿瘤切除术，术后病理明确为普通型脊索瘤。

该患者的肿瘤累及的脑神经主要为（）

A.视神经

B.动眼神经

C.滑车神经

D.外展神经

E.面神经