《中华人民共和国合同法》规定了无效合同的一些条件,符合无效合同的条件有()。①违反法

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问题:

《中华人民共和国合同法》规定了无效合同的一些条件,符合无效合同的条件有()。①违反法律和行政法规的合同;②采取欺诈、胁迫等手段所签订的合同;③代理人签订的合同;④违反国家利益或社会公共利益的经济合同。

A.①②③

B.②③④

C.①③④

D.①②④

考点:一级注册结构工程师一级结构师基础知识一级注册结构工程师基础知识模拟试题(五)
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Jenny,

I often think if I am as important to you as you are to me.

We had an unhappy time yesterday. I really felt sad after it and almost apologized (道歉) to you. However,you could still laugh and talk with others like nothing had happened. I suddenly realized that I was not that important to you. You didn’t even realize that I was angry and sad. What’s more,you even forgot my birthday this year.

Goodbye,my friend. I have closed my feeling toward you. It is sad to say goodbye,my friend. But it is meaningless for us to be friends any longer.

Lucy

Dear Lucy,

I’m sorry that I hurt you so much yesterday. But here is something I really need to tell you. I never thought the quarrel we had yesterday was as serious as you thought. I just felt tired and didn’t feel like going shopping. Susan and Lily are also my good friends. I couldn’t pretend (假装) not seeing them when they passed by. I also couldn’t let them know I was blue because of the quarrel. I didn’t want them to feel sad just because I was sad. I’m your best friend,but I don’t want to be your only friend. I don’t want to be with you all the time because sometimes I need to have my own time. I want to spend some time with my other friends and my brother. Please try to make more friends. You will feel much happier if you have more friends. And remember,I’m your best friend forever!

Jenny

小题1:What’s the purpose of Lucy’s letter?

A.To tell Jenny that she is really sorry for what happened yesterday.

B.To tell Jenny she doesn’t want to be friends with her any longer.

C.To ask Jenny not to be friends with Susan or Lily.

D.To ask Jenny if she means much to her.小题2:What’s the cause of the quarrel yesterday?

A.Jenny laughed and talked with others.

B.Jenny didn’t notice that Lucy was sad.

C.Jenny didn’t want to go shopping.

D.Jenny didn’t remember Lucy’s birthday.小题3:In the letter,Jenny suggests Lucy should________.

A.make more friends

B.leave her alone

C.make friends with Susan and Lily

D.spend more time with her family小题4:According to the passage,if we say someone is blue,we mean he/she is________.

A.angry

B.sad

C.kind

D.happy小题5:After reading Jenny’s letter,we learn that________.

A.Jenny and Lucy are both students

B.Lucy doesn’t know how to keep a healthy friendship

C.A friend in need is a friend indeed

D.Lucy is Jenny’s only friend

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肝细胞癌的超声造影表现是()

A.动脉期或门脉早期病灶周边结节样或环形增强,后呈向心性充填

B.动脉早期由中央向周边离心性"轮辐状"增强,门脉期持续增强

C.在造影过程中无增强表现,呈边界清晰的三期无回声结节

D.动脉早期瘤体完全增强,门脉期及延迟期呈低回声,"快进快出"

E.超声造影增强与周围肝组织表现一致,难以区分病变部位

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根据原文,全球气温变暖带来的影响最严重的一项是( )。

A.河流水量减少甚至干涸,饮用水源遭到破坏,导致不少地区沙漠扩大,疾病流行

B.肆虐的冬季风暴将变得司空见惯,一些地区会因为过于干旱而无法种植各类作物

C.数以百万计的人因海岸线受侵蚀、海岸被淹没和农业生产遭破坏而被迫离开家园

D.台风频频袭击,致使短时间内大量降水,洪水泛滥,城市淹没,山体滑坡,交通中断

题型:单项选择题

技术创新风险可以管理,但是不可以完全灭除。

题型:单项选择题

关于流感病毒抗原完全变异的原因的学说,下列哪条是错误的。()

A.病毒本身自然突变和人群免疫力选择的结果

B.老的人类流感病毒在人间消失后,转入某种动物中保存下来,在一定条件下又引起人间的流行

C.动物流感病毒株发生变异适应于人类

D.人的流感病毒株与动物病毒株的杂交,形成了抗原重组的新亚型

E.三种不同亚型流感病毒的重组

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