下列关于溶胶剂的错误表述是 A.溶胶剂属于热力学和动力学均不稳定体系 B.溶胶剂中加

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问题:

下列关于溶胶剂的错误表述是

A.溶胶剂属于热力学和动力学均不稳定体系

B.溶胶剂中加入电解质会产生盐析作用

C.溶胶粒子具有双电层结构而荷电,溶胶具有电泳现象

D.ζ电位越高斥力越大,溶胶剂的稳定性越差

E.溶胶粒子越小,布朗运动越激烈,因而沉降速度越小

考点:西药执业药师药学专业知识(二)西药执业药师药学专业知识(二)
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The relationship between student and teacher is less formal in the USA than in many other countries, especially at the college level. When teachers come into the classroom , the students don’t need to stand up. Students are generally encouraged to ask questions during class, to go to the teacher’s office for help after class, and to phone if they can’t go to school and need help with their lessons. (2)Most teachers allow students to enter class late or leave early, if necessary.

However, students are still asked to be    (1)   to their teacher and classmates and to be (1)   during a test. When students want to ask questions, they usually put up a hand and wait. When the teacher or a student is speaking to the class ,it’s rude to talk to another classmate, even in a low voice. When a test is being given, talking to a classmate is not only rude but also wrong. In the eyes of most American teachers, students who are talking to each other during a test are cheating(作弊).

小题1: 在(1)句的空白处分别填入一个适当的词使句意完整、上下文通顺。

_____________     _______________

小题2: 将(2) 句译成中文。

__________________________________________________________________________

小题3: 回答问题:Where do the students go to ask for help after class?

______________________________________________________________________

小题4: 从文中找出同义句。

Most teachers think it is dishonest for students to talk about something when they are having a test.

__________________________________________________________________________

小题5: 在文中找出最能表达该短文主题的句子。

__________________________________________________________________________

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—Welcome! 

            .[ ]

A. Welcome    

B. Thank you  

C. Yes

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为提高邮政营业网的覆盖面,现阶段我国农村局所的发展方向主要是大力发展()。

A.村委会代办局所

B.邮政自办局所

C.有实力单位的委办连锁局所

D.农民家庭承包局所

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驳岸如采用块石压顶,石的底部应(),并使顶面高出最高水位50cm为宜。

A、与岸墙平齐

B、向水中挑出5~6cm

C、根据岸线的曲线来确定位置

D、平整

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以下有关于云计算的描述正确的是()

A、私有云是将云基础设施与软硬件资源创建在防火墙内,以供机构或企业内各部门共享数据中心内的资源B、云计算模式中用户通过高速互联网就可以透明地使用各种资源

C、云计算由一系列可以动态升级和被虚拟化的资源组成

D、云计算包括的几个层次的服务中,IaaS在应用软件层实现,PaaS在基础设施层实现

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