胆石症合并胆道感染时腹痛为（） A.常发生在进油腻食后 B.过食、饮酒后发生 C.腹

艺术品是物态化了的人的审美意识，艺术家的审美意识通过一定的物质材料得到了（）的体现，变成了艺术形象。

A、视觉

B、美学

C、客观

D、主观

典型萎缩性鼻炎的病理改变是()

A．粘膜和骨部血管发生海绵状静脉丛炎

B．闭塞性动脉内膜炎

C．粘膜、腺体、骨膜和骨质萎缩、纤维化

D．粘膜上皮鳞状上皮化

E．以上都对

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.

在部门支出预算中，大型购置支出属于( )。

A．基本支出预算
B．项目支出预算
C．专项支出预算
D．单项支出预算

已知向量β= (a₁，a₂，a₃，a₄)^T可以由α₁=(1，0，0，1)^T，α₂=(1，1，0，0)^T，α₃=(0，2，-1，-3)^T，α₄=(0，0，3，3)^T线性表出.
(Ⅰ)求a₁，a₂，a₃，a₄应满足的条件；
(Ⅱ)求向量组α₁，α₂，α₃，α₄的一个极大线性无关组，并把其他向量用该极大线性无关组线性表出；
(Ⅲ)把向量β分别用α₁，α₂，α₃，α₄和它的极大线性无关组线性表出.