BIM信息模型在建筑工程全寿命期不同阶段的模型信息是同一的,一样的构件信息没有必要反

题型:单项选择题

问题:

BIM信息模型在建筑工程全寿命期不同阶段的模型信息是同一的,一样的构件信息没有必要反复地输入,而且模型本身能够自动演化、计算、统计、解析,模型对象在不同阶段还可以简单地智能修改和扩展而无需重新创建,可以避免因为建筑工程信息来源不一致而出现的错误,体现了BIM的()

A.关联性

B.一致性

C.完备性

D.协调性

考点:二级建造师继续教育二级建造师继续教育(综合练习)二级建造师继续教育(综合练习)题库
题型:单项选择题

在FeCl3溶液中滴加无色的KSCN溶液后,有以下可逆反应存在:FeCl3+3KSCNFe(SCN)3+3KCl。已知Fe(SCN)3呈红色,则在该平衡体系中加入少量KCl晶体后(忽略溶液体积的变化),红色将(   )

A.变深

B.变浅

C.不变

D.无法确定

题型:单项选择题

下列各组离子在无色溶液中能大量共存的是

A.H+、Cl、SO42、K+

B.K+、H+、Na+、HCO3

C.Cu2+、K+、SO42、Cl

D.Ag+、NO3、Cl、K+

题型:单项选择题

下图是一个小型以太局域网的示意图,除了服务器和PC机之外,其中用来连接网络中各个节点机并对接收到的信号进行再生放大的组网设备是 【17】

题型:单项选择题

阅读理解。

     What do you call someone who speaks three languages? Trilingual. What do you call someone who

speaks two languages? Bilingual. What do you call someone who speaks one language? An American.

     To people in many countries, being bilingual or even trilingual is a way of life. But since the mother

tongue of most Americans is English-a language widely spoken around the world-they often don't feel the

need to learn a foreign language. Moreover, people who live in the heartland of America have little contact

with other linguistic groups, making foreign language skills irrelevant.

     Actually, though, this"land of immigrants" has always had people of many different nationalities and

languages. The 1990 census indicates that almost 14% of Americans speak a non-English at home. Yet

only 3% reported that they spoke English "not well" or "not at all". That means that slightly more than one

out of 10 Americans could be considered bilingual. Besides that, many high school and college students and

even some elementary school students are required to take a foreign language as a part of their curriculum.

In addition to old standbys like Spanish, German and French, more and more students are opting (选择)for

Eastern European and Asian languages. Of course, not all students keep up their foreign language abilities.

As the old saying goes, "If you don't use it, you lose it," But still, a growing number of Americans are coming

to appreciate the benefits of bein  multilingual.

1. What can we learn from this passage?

A. Many Americans don't speak English at home.

B. All Americans speak English very well.

C. Most Americans can only speak one language.

D. In America most students only study one language.

2. Why do most Americans consider foreign languages are not important?

A. Because they think foreign languages are hard to learn.

B. Because English, their mother tongue, is a language widely spoken around the world.

C. Because they don't like foreign languages at all.

D. Because they have poor abilities to learn foreign languages.

3. What does the underlined word "multilingual"mean?

A. Bilingual.

B. Trilingual.

C. Language skill.

D. Speaking many languages.

4. What is happening to Americans now according to this passage?

A. More and more Americans are coming to appreciate the benefits of being multilingual.

B. Most Americans are studying foreign languages.

C. Most students in America are studying foreign languages.

D. Many elementary, high school and college students are required to learn five languages.

题型:单项选择题

列管换热器内安装折流挡板的目的是(),使湍流程度加剧,增大传热系数。

A.加大壳程流体的流速

B.降低壳程流体的流速

C.加大管程流体的流速

D.降低管程流体的流速

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