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发布时间:2023-10-09 04:27:52

[简答题]CeO2为萤石型的结构,当在CeO2中加入15mol%的CaO形成固溶体时,测得固溶体的密度为6.54g/cm3,这时的晶格参数为a=0.5417nm,通过计算说明这种固溶体的类型。(其中相对原子质量分别为O:16,Ca:40,Ce:140)。

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[填空题]当有少量的CaO加入到ThO2晶格中形成固溶体时,试写出可能存在的缺陷反应方程式和固溶式:
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缺陷反应方程式()和对应的固溶式()。
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[简答题]试计算Na2O·CaO-Al2O3·2SiO2玻璃的四个结构参数Z、R、X和Y。
[简答题]5wt%Na2O、14wt%CaO、22.5wt%Al2O3和45wt%SiO2玻璃的四个结构参数Z、R、X和Y。(其中原子量分别为Na:23,O:16,Ca:40,Al:27,Si:28)。
[简答题]为考生文件夹下的CAO文件夹建立名为CAO2的快捷方式,存放在考生文件夹下的HUE文件夹下。
[简答题]根据所示的CaO-ZrO2相图,做下列工作:
①写出所有的三相恒温转变。
②计算ω(caO)=4%的CaO-ZrO2陶瓷在室温时为单斜ZrO2固溶体(Monoclinic ZrO2SS)和立方ZrO2固溶体(Cubic ZrO2SS)的相对量(用摩尔分数表示)。假定单斜ZrO2固溶体和立方ZrO2固溶体在室温的溶解度分别为2mol%Cao和15mol%CaO。
[单项选择]下列结构类型中,加入氢氧化钙能产生沉淀的是
A. 蛋白质
B. 多糖
C. 鞣质
D. 皂苷
E. 生物碱
[填空题]What position did Ms. Cao apply for She applied for ______.
[填空题]When will Ms. Cao become a permanent member of staff After ______ of six months.
[填空题]What will Ms. Cao be expected to do before she starts her work as a clerk To undergo ______ in two different offices of the company.
[填空题]

September 15, 2002
Dear Ms. Cao,
I am pleased to inform you that you are file successful applicant for the post of clerk in the Li Seng Office of our company, starting on Monday, 17 September. This offer is subject to receiving good references concerning your previous employment. I should be grateful, therefore, if you could kindly send me as soon as possible the names and addresses of three people who have known you for at least one year. One of the referees should be your present employer.
The position is also subject to probationary (见习的)period of six months. At the end of this time, we have the right to terminate (解除)your contract after giving you one week’ s notice. If you perform satisfactorily during this initial period, however, your post will become permanent with annual increments (增额)in salary. You will also be eligible for promotion to Senior Clerk after five years.
We shall also require you to undergo a period of training

[单项选择]为保证数据输入的正确性,通常在代码结构中加入( )。
A. 十进制编码
B. 校验码
C. 专用编码
D. 组合编码
[填空题]
Septemberl5, 2002
Dear Ms. Cao,
I am pleased to inform you that you are the successful applicant for the post of clerk in the Li Seng Office of our company, starting on Monday, 17 September. This offer is subject to receiving good references concerning your previous employment. I should be grateful, therefore, if you could kindly send me as soon as possible the names and addresses of three people who have known you for at least one year. One of the referees should be your present employer.
The position is also subject to probationary (见习的) period of six months. At the end of this time, we have the right to terminate (解除) your contract after giving you one week’s notice. If you perform satisfactorily during this initial period, however, your post will become permanent with annual increments (增额) in salary. You will also be eligible for promotion to Se

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