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【简答题】
车削是 __________ 作主运动, __________ 作进给运动的切削加工方法。在车床上车削外圆柱面,装夹车刀时,车刀刀杆伸出刀架长度应不超过 ________ 厚度的 1 . 5 倍,车刀刀杆中心线应与 ____________ __ 方向垂直,车刀刀尖一般应与工件轴线 _____ _ ,但在粗时刀尖应 ____ ______ 于工件轴线,精车细长轴外圆时刀尖应 __________ 于工件轴线。
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【单选题】在.NET框架下开发三层结构应用程序时,以下代码最有可能出现在( ) If(txtLoginId.Text.Trim()==””){ MessageBox.Show( “请输入用户名”); txtLoginIn.Focus(); }
A.
表示层
B.
业务逻辑层
C.
数据访问层
D.
模型层
【单选题】The US Constitution provides that the shall be President of Senate.
A.
President
B.
Chief Justic
C.
Vice President
D.
Attorney General
【单选题】According to Staffan Linder, trade between two countries tends to be most pronounced when the countries:
A.
Find their tastes and preferences to be quite harmonious
B.
Experience economies of large-scale production over large output levels
C.
Face dissimilar relative abundances of the factors of production
D.
Find their per capita income levels to be approximately the same
【单选题】In this passage, the author provides us with effective ways to cope with different types of lies.
A.
Y
B.
N
C.
NG
【判断题】Each of the fifty states in the US provides a free schooling of 12 years to its residents.
A.
正确
B.
错误
【单选题】在.NET框架下开发三层结构应用程序时,关于三层结构的说法中错误的是( )
A.
三层结构体现了“高内聚,低偶合”的思想
B.
三层结构在大中型应用系统中应用较多
C.
三层结构适用于客户界面需求经常发生变化的情景
D.
三层结构适用于客户对开发语言要求经常发生变化的情景
【单选题】The sun provides us with our food and clothing materials.
A.
规定
B.
提供
C.
赡养
【简答题】What does the passage say about the Internet? A) It provides us with the quickest means for communication. B) It provides us with the quickest means to collect information. C) It provides us with the ...
【单选题】在.NET框架下开发三层结构的数据库应用系统时,using语句范围内定义了一个数据库连接对象,当程序执行到using语句末尾时,将自动释放此数据库对象。假设strSQL为连接字符串,以下using语句使用正确的是()。
A.
using{(SqlConnction conn=new SqlConnection(strSQL)}
B.
using(SqlConnection conn=new SqlConnection()){strSQL}
C.
using{}(SqlConnection conn=new SqlConnection(strSQL))
D.
using(SqlConnection conn=new SqlConnecion(strSQL)){}
【单选题】Which of the following statements is true according to Passage A? A. B. C. Studying the humanities makes us familiar with the language of emotion and the creative process . D. Studying the humanities ...
A.
A college education is more and more seen as a means for human betterment rather than economic betterment.
B.
Studying the humanities improves our ability to listen and speak.
C.
Studying the humanities makes us familiar with the language of emotion and the creative process .
D.
Studying the humanities provides us with very limited possibilities .
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