在折光系统中，最主要的折光发生在A．角膜 B．房水 C．晶状体 D．玻璃体 E．视网

下列哪项不是中毒性脑病所致惊厥的临床特点（）

A.任何年龄均可发生

B.多见于中毒性菌痢、败血症、肺炎等疾病的极期

C.惊厥可局限性、次数多、时间长

D.易留有神经系统后遗症

E.脑脊液检查有时除压力增高外，余正常

阅读理解。

     Do you know what Fear and Faith have in common? Fear believes in a negative future. Faith

believes in a positive future. Both believe in something that has not yet happened. So I ask you, if

neither the positive nor negative future has happened yet then why not choose to believe in the positive

future?

     I believe during these challenging times we have a choice between two roads: the positive road

and the negative road. And our bus can't be on two roads at the same time. So we have to make a

choice and this choice determines our belief about the future and the attitude and actions we bring

to the present.

     I'm not saying we shouldn't have any fear. There are times when fear is a gift. A healthy dose(剂量)

of fear causes us to examine our situation and plan for the future. It moves us to smell the cheese and

expect change. When used wisely it allows us to manage risk and make better decisions. Some fear

is good.

     However, what I have observed lately is a supersized, huge dose of fear that is spreading the

hearts and minds of far too many people. This oversized fear is causing leaders and their organizations

to either act unreasonably or to not act at all. They are either hurrying in a million different directions

because of fear. In both cases, fear is leading them to take the negative road to failure.

     The answer is the positive road paved (铺满) with faith and a belief that your best days are not

behind you but ahead of you. With this belief you make the right choices and actions today that will

create your positive future tomorrow. You stay calm, focused and committed to your purpose. You

look for ways to save money and cut costs without making unreasonable fear-based decisions that

sacrifice your future success. You identify opportunities in the midst of the challenges and you focus

on solutions instead of problems.

     Your faith and belief in a positive future leads to powerful actions today. The future has not

happened yet and you have a say in what it looks like by the way you think and act. Fear or Faith.

     The choice is yours.

1. According to the passage, we can know that ________.

A. Fear and Faith have nothing in common

B. both Fear and Faith trust something in the future

C. neither negative nor positive future will happen

D. people usually choose to believe in the positive future

2. What does the writer mean by saying "our bus can't be on two roads"?

A. We usually choose the negative road

B. We should choose the positive road

C. We must choose either a positive or negative road

D. Our belief about the future depends on our choice

3. Which of the following about "Fear" is true?

A. We should have fear because it is a gift.

B. Reasonable fear helps to plan for future.

C. Fear can bring cheese and risk to people.

D. Leaders usually have oversized fear.

4. If we have faith in future, we will ________.

A. have the best days ahead of us

B. be committed to saving money

C. stay away from any challenges

D. take powerful actions today

5. What does the writer intend to tell us in the passage?

A. Fear is closely related to faith.

B. Life is full of fear and faith.

C. We should have faith in a positive future.

D. Wrong decisions sacrifice our future success.

完整的原型化的工具，应具有几个基本成分。以下成分：
　　Ⅰ集成数据字典　　　　　　　　　　　Ⅱ．高适应性的数据库管理系统
　　Ⅲ．非过程查询语言和报告书写器　　　Ⅳ．自动文档编辑器
　　Ⅴ．屏幕生成器
　　哪个(些)是原型化工具应该具备的

A．Ⅰ和Ⅴ

B．Ⅰ和Ⅳ

C．Ⅲ和Ⅳ

D．全部

脑水肿常发生于

A．颅脑损伤

B．脑性瘫痪

C．脑营养不良

D．颅内动脉瘤

E．颅底凹陷症

天平(感量为50毫克)( )。