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下面哪几项属于网站经营主体查询栏目结果数据项:()
A . 开办主体名称
B . 开办主体注册资本
C . 网站域名
D . 地址
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下面哪个理论是通过一个职业偏好量表的,其中包括160个职业项目,让回答者自己是否喜爱这些职业的数据的基础上得到?()
A . 代际价值观
B . 组织文化剖面图
C . 罗克奇的价值观调查
D . 当代工作群体
E . 人格-工作适应性理论
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在Excel2003的当前工作的标签行中选定表标签SHEET3,按住CTRL键把它拖到SHEET5与SHEET6之间,则在SHEET5与SHEET6之间产生的新表的标签是()
A . SHEET3(1)
B . SHEET5(1)
C . SHEET3(2)
D . SHEET6(1)
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根据本讲,数据交换有三种方式,分别是()。
A . 物理的隔离
B . 逻辑的隔离
C . 基于逻辑隔离的数据交换
D . 基于物理隔离的数据交换
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某房地产开发商有4个寿命期为5年的互斥投资方案,基准收益率为10%。根据下表的数据,应用净现值率比较法比选,应该选择()。https://assets.asklib.com/psource/2014080219212922049.png
A . 甲
B . 乙
C . 丙
D . 丁
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有定义语句:int i;double a[4];若通过键盘输入为数组a的4个元素赋值,输入时不同数据之间使用默认分隔符,则下面正确的输入语句是()
A . for(i=0;i<4;i++)scanf("%lf",&a[i])
B . for(i=0;i<4;i++)scanf("%f",&a[i])
C . for(i=0;i<4;i++)scanf("%lf\n",&a[i])
D . for(i=0;i<4;i++)scanf("%f,",&a[i])
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在Excel工作簿窗口中,在工作表标签行中选定工作表标签Sheet3,按住Ctrl键把它拖动到Sheet1与Sheet2之间,则Sheet1与Sheet2之间产生的新表的工作表标签是()。
A . Sheet1(2)
B . Sheet2(1)
C . Sheet3(1)
D . Sheet3(2)
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8选1数据选择器,其地址输入端有( )。A. 8个 B. 2个 C. 3个 D. 4个
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本讲中提到,北京大学张志学教授认为成功人士有八个特点,根据本讲的观点,八个特点中属于“德”范畴的是
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3 、 8 选 1 数据选择器,其地址输入端有( )。 A. 8 个 B. 2 个 C. 3 个 D. 4 个
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下面有.3篇短文,每篇短文后有5道题,每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题,从4个选项中选择1个最佳答案。
第一篇
Volunteers are being recruited(征募) to eat raw potatoes in the first human trials of a vaccine grown in genetically engineered vegetables. Researchers in Texas hope that people who eat the potatoes will be protected against common gut(肠,肠子) infections. They believe this technique could prove to be a cost-effective way of growing vaccines in developing countries where such diseases are still killers.
Other researchers previously succeeded in using similar techniques to produce potential vaccines Now Hugh Mason and his colleagues at Texas A & M University(得克萨斯农业及机械大学) their plant vaccines on mice and plan to recruit 15 volunteers for a human trial.
The team first tested the technique in tobacco plants. They took a strain of Escherichia coli(大肠杆菌) bacteria that causes food poisoning, and identified the part of the poison which binds to its victims gut cells. They then used a modified plant bacterium called Agrobacterium tumefasciens to transfer the segment of DNA which manufactures the binding protein into the tobacco plant. Under normal circumstances, these bacteria transfer packets of DNA into plant cells to force the plant to manufacture the nutrients they need. But in the modified bacteria, the DNA package includes the gene to pro- duce the binding protein.
Once the foreign DNA segment was incorporated(结合,合并) into the tobacco's own DNA, the bacteria were killed off with antibiotics. Mason's team then grew these modified tobacco plants and found that they produced the E. coli binding protein.
Proof of success came when the tobacco leaves were mashed up(捣碎) and squirted into the stomachs of mice. Mason says that within days the mice started producing specific antibodies to the E. coli poison, but suffered no ill effects from digesting the binding protein. Mason then produced genetically engineered potatoes and fed these to mice, with similar results.
Mason's team have used plants to produce vaccines against a number of other infectious agents. For example, they have made a vaccine using a protein from the shell of the Norwalk virus, which causes diarrhoea(腹泻) in children.
A third vaccine has also been produced in tobacco using a surface protein from the hepatitis B virus. But Mason says that so far they have only been able to produce small amounts of it in potatoes. Although a vaccine already exists against hepatitis B, a cheaper plant version could make mass immunisation(群众性免疫) possible.
One problem with growing potatoes to produce vaccines is that cooking tends to destroy the protein component of the vaccine, so they must be eaten raw. Mason thinks that bananas may be a better option. "One banana could potentially produce a whole host of different vaccines," says Mason.
The purpose of this text is______。
A. to prove that doctors don't like vegetables
B. to amuse the reader by telling some funny things
C. to describe how vegetables can grow vaccines for their own use
D. to tell the reader about a cheaper way of growing vaccines
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现有一批液体二甲硫基甲苯二胺,分类鉴别报告显示该产品的GHS分类为急性毒性-口服类别4,敏化-皮肤类别1,危害水生环境-急性危险类别1,危害水生环境-长期危险类别1。检验人员在进行危险公示核查时,发现包装上粘贴的危险公示标签和随附的安全数据单上有几处存在疑点。安全数据单中,意外释放措施栏目列出的条款,不恰当的一项是()。
A.人身防范、保护设备和应急程序
B.环境防范措施
C.抑制和清理的方法和材料
D.无不恰当的技术内容
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根据本讲,创新思维是()。A.创新能力的关键
B.整个创新活动的智力结构的关键
C创新人才创造性解决问题的基础
D.创新能力的核心
此题为多项选择题。
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新华资料国内部分有()等18个栏目A.概况
B.政党
C.国家机构
D.民间机构
E.外交
F.人物
此题为多项选择题。
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根据本讲,在工业统计的22大门类中,我国有()个工业大类占据世界第一
A.4
B.5
C.6
D.7
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根据48327=1296,下面算式不正确的是()。A. 4.832.7=12....
根据48³27=1296,下面算式不正确的是()。
A. 4.8³2.7=12.96
B. B.48³2.7=129.6
C. C.0.48³2.7=12.96
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4、已知有n个数据进行排序,下面能实现排序的是
A.data=[34,5,-6,12,87,29] data.sort()B.data=[34,5,-6,12,87,29] n=len(data) while i<n: while j<n-1: if data[j]>data[j+1]: data[j],data[j+1]= data[j+1],data[j] j+=1 i+=1C.data=[34,5,-6,12,87,29] n=len(data) i=0 j=0 while i<n: while j<n: if data[j]>data[j+1]: data[j],data[j+1]= data[j+1],data[j] j+=1 i+=1 print(data)D.data=[34,5,-6,12,87,29] n=len(data) i=0 j=0 while i<n-1: while j<n-1: if data[i]&g
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现有一批叔丁基二硫醚,分类鉴别报告显示该产品的GHS分类为易燃液体第4类,危害水生环境(急性)第2类,危害水生环境(长期)第2类。检验人员在进行危险公示核查时,发现包装上粘贴的危险公示标签和随附的安全数据单上有几处存在疑点。安全数据单中,运输信息栏目列出的条款,不恰当的一项是()。
A.联合国编号
B.联合国正式运输名称
C.运输危险类别
D.包装类别
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现有一批出口液体丙环唑95%原药,分类鉴别报告显示该产品的GHS分类为急性毒性(口服)类别4、皮肤致敏类别1、危害水生环境(急性)类别1、危害水生环境(长期)类别1。检验人员在进行危险公示核查时,发现包装上粘贴的危险公示标签和随附的安全数据单上有几处存在疑点。安全数据单中,毒理学信息栏目列出的条款,不恰当的一项是()。
A.食入
B.皮肤接触
C.慢性毒性或长期毒性效应
D.毒性的数值度量
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线性表的每个数据元素在存储时需要4个数据单元,采用顺序表存储。若已知第一个元素的存储地址是LOC()是
A.1036
B.1040
C.1009
D.1010
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根据本讲,CRISP-DM模型将工业大数据分析阶段包括()个步骤。
A.3
B.4
C.5
D.6
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根据本讲,规则意识有哪几个层次?()
A.遵守规则
B.规则制定过程中允许平等参与制定合理的规则
C.允许挑战规则
D.允许超越规则
E.维护规则
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新华资料国际部分包括()等10个栏目。A.各国概况
B.各国王室
C.会议
D.组织
E.联合国
F.奖励
此题为多项选择题。
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完成以下操作,保存数据文件exercise1姓名.sav和输出文件exercise1姓名.spv 1.定义变量:在spss窗口读入一个关于生物考试的数据文件exercise1a.xls,根据表格中的信息 a. 定义变量名 b. 加变量的标签 c. 加变量值的标签 d. 所有缺失值设为‘9’ e. 在变量值标签窗口设定9 为“Not Specified” 变量名 变量标签 格式 变量值标签 第1列 ID Student Identifier 两位字符 第2列 Gender Student Gender 1位整数 1=Female 2=Male 第3列 Ethnic Student Ethnicity 1位整数 1=Asian 2=African American 3=Hispanic 4=Native American 5=White 第4列 Required Course Requirement Flag 1位整数 0=No, Course is Not required 1=Yes,