皮皮学，免费搜题
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搜题
【单选题】
实现“查询与同系的学生信息(基于自身连接)”的SELECT语句为( )。
A.
SELECT S2.* FROM Student S1,Student S2 WHERE S1.Sdept=S2.Sdept AND S1.Sname='B．'
B.
SELECT S2.* FROM Student S1,Student S2 WHERE S1.Sname=''
C.
SELECT S2.* FROM Student S1 JOIN Student S2 ON S1.Sdept=S2.Sdept AND S1.Sname=''
D.
LECT S2.* FROM Student S1 JOIN Student S2 ON S1.Sdept=S2.Sdept OR S1.Sname=''
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举一反三
【单选题】You are asked to change the cable on interface fe-4/2/3.Which statement is correct?（）
A.
The cable is found on port 4, FPC 2, and slot 3.
B.
The cable is found on slot 2, port 3, and FPC 4.
C.
The cable is found on FPC 4, slot 3, and port 2.
D.
The cable is found on slot 2, FPC 3, and port 4.
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【单选题】Word 2010中，在文档中选取间隔的多个文本对象，按下键
A.
lt
B.
Shift
C.
Ctrl
D.
Ctrl+Shift
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【单选题】从提高生产率和降低加工成本的角度来看,切削用量中应首先确定(),其次确定(),最后确定()。
A.
背吃刀量
B.
进给量
C.
切削速度
D.
切削厚度
查看完整题目与答案
【单选题】You are asked to change the cable on interface ge-2/1/3.Which statement is correct?（）
A.
The cable is found on FPC 1, slot 3, and port 2.
B.
The cable is found on slot 1, port 2, and FPC 3.
C.
The cable is found on port 3, FPC 2, and slot 1.
D.
The cable is found on FPC 1, slot 2, and port 3.
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【单选题】长方体管式折叠纸盒自锁底粘合余角等于多少度呢。
A.
45 度
B.
30 度
C.
60 度
D.
90 度
查看完整题目与答案
【单选题】Which statement about an estimated position is TRUE?
A.
 It is usually based on soundings.
B.
It is more reliable than a fix based on radar bearing.
C.
When a 3-LOP fix plots in a triangle the center of the triangle is the estimated position
D.
It may be based on a single LOP or questionable data.
查看完整题目与答案
【单选题】Which statement describing a stove’s look is not true?
A.
It has a long neck and a brass stomach.
B.
It eats firewood.
C.
Fire spurts from lower part of it.
D.
It has the same color with the snow man.
查看完整题目与答案
【单选题】Which statement about computers does Jay probably agree with?
A.
Computers are disposable.
B.
Laptop computers are more convenient.
C.
Laptops are better than desktops.
D.
Old computers are more reliable than new ones.
查看完整题目与答案
【单选题】Java 语言具有很多优势和特点,以下()特点能保证软件的可移植性。
A.
健壮性
B.
安全性
C.
跨平台
D.
动态性
查看完整题目与答案
【单选题】Refer to the exhibit. Which statement describes DLCI 17?
A.
DLCI 17 describes the ISDN circuit between R2 and R3.
B.
DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.
C.
DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.
D.
DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.
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相关题目：
【单选题】You are asked to change the cable on interface fe-4/2/3.Which statement is correct?（）
A.
The cable is found on port 4, FPC 2, and slot 3.
B.
The cable is found on slot 2, port 3, and FPC 4.
C.
The cable is found on FPC 4, slot 3, and port 2.
D.
The cable is found on slot 2, FPC 3, and port 4.
查看完整题目与答案
【单选题】Word 2010中，在文档中选取间隔的多个文本对象，按下键
A.
lt
B.
Shift
C.
Ctrl
D.
Ctrl+Shift
查看完整题目与答案
【单选题】从提高生产率和降低加工成本的角度来看,切削用量中应首先确定(),其次确定(),最后确定()。
A.
背吃刀量
B.
进给量
C.
切削速度
D.
切削厚度
查看完整题目与答案
【单选题】You are asked to change the cable on interface ge-2/1/3.Which statement is correct?（）
A.
The cable is found on FPC 1, slot 3, and port 2.
B.
The cable is found on slot 1, port 2, and FPC 3.
C.
The cable is found on port 3, FPC 2, and slot 1.
D.
The cable is found on FPC 1, slot 2, and port 3.
查看完整题目与答案
【单选题】长方体管式折叠纸盒自锁底粘合余角等于多少度呢。
A.
45 度
B.
30 度
C.
60 度
D.
90 度
查看完整题目与答案
【单选题】Which statement about an estimated position is TRUE?
A.
 It is usually based on soundings.
B.
It is more reliable than a fix based on radar bearing.
C.
When a 3-LOP fix plots in a triangle the center of the triangle is the estimated position
D.
It may be based on a single LOP or questionable data.
查看完整题目与答案
【单选题】Which statement describing a stove’s look is not true?
A.
It has a long neck and a brass stomach.
B.
It eats firewood.
C.
Fire spurts from lower part of it.
D.
It has the same color with the snow man.
查看完整题目与答案
【单选题】Which statement about computers does Jay probably agree with?
A.
Computers are disposable.
B.
Laptop computers are more convenient.
C.
Laptops are better than desktops.
D.
Old computers are more reliable than new ones.
查看完整题目与答案
【单选题】Java 语言具有很多优势和特点,以下()特点能保证软件的可移植性。
A.
健壮性
B.
安全性
C.
跨平台
D.
动态性
查看完整题目与答案
【单选题】Refer to the exhibit. Which statement describes DLCI 17?
A.
DLCI 17 describes the ISDN circuit between R2 and R3.
B.
DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1.
C.
DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3.
D.
DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider.
查看完整题目与答案