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【单选题】
下面关于参照完整性定义的说法中错误的是（ ）。
A.
在Create Table语句中用foreign  Key短语定义哪些列为外码。
B.
在Create Table语句中用Primary Key短语指明外码参照哪些表的主码。
C.
如果添加参照完整性约束，可以在Constraint短语后面写出约束的名字。
D.
一般在表级定义参照完整性约束。
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【单选题】在投影系中平行于W面的直线,称为( )。
A.
水平线
B.
正平线
C.
侧平线
D.
垂直线
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【单选题】听力原文：Many teachers believe that the responsibility for learning lies with the student. If a long-reading assignment is given, instructors expect students to be familiar with the information in the rea...
A.
For the sake of high grades.
B.
For passing given examinations.
C.
For the good of gaining knowledge.
D.
For the completion of required assignments.
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【单选题】The word' self-possession' ( Para. 1) probably means______.
A.
self-confidence
B.
self-consciousness
C.
self-discipline
D.
self-devotion
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【单选题】在投影系中平行于 W 面的直线，称为（ ）
A.
水平线
B.
正平线
C.
侧平线
D.
铅垂线
查看完整题目与答案
【单选题】在三面投影系中垂直于W 面的直线,称为( )。
A.
水平线
B.
正平线
C.
侧垂线
D.
垂直线
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【单选题】在使用下列何种贸易昭语进行交易时,卒方匊时向买方发凚“已装船通瞤”至关重要,因为它将直接影响买卖双方对运输途中的风险承担。( )
A.
CIP
B.
DES
C.
FCA
D.
CFR
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【单选题】Which of the following is TRUE?
A.
The honey-bee is blind to red.
B.
Man is more color-conscious than the honey-bee.
C.
The honey-bee can see far more colors than man.
D.
Man is sensitive to the ultraviolet.
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【单选题】在三面投影体系中,垂直于W 面的直线,称为( )。
A.
水平线
B.
正平线
C.
侧垂线
D.
垂直线
查看完整题目与答案
【单选题】From the fifth paragraph we can learn that _________.
A.
the very rich are fashion-conscious
B.
the very rich are politically sensitive
C.
universal health care is to be implemented throughout America
D.
Congress has gained popularity by increasing the minimum wage
查看完整题目与答案
【单选题】There is probably no sphere of human activity in which our values and lifestyles are reflected more vividly than they are in the clothes that we choose to wear. The dress of an individual is a kind of...
A.
corresponds
B.
communicates
C.
exchanges
D.
transforms
查看完整题目与答案
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【单选题】在投影系中平行于W面的直线,称为( )。
A.
水平线
B.
正平线
C.
侧平线
D.
垂直线
查看完整题目与答案
【单选题】听力原文：Many teachers believe that the responsibility for learning lies with the student. If a long-reading assignment is given, instructors expect students to be familiar with the information in the rea...
A.
For the sake of high grades.
B.
For passing given examinations.
C.
For the good of gaining knowledge.
D.
For the completion of required assignments.
查看完整题目与答案
【单选题】The word' self-possession' ( Para. 1) probably means______.
A.
self-confidence
B.
self-consciousness
C.
self-discipline
D.
self-devotion
查看完整题目与答案
【单选题】在投影系中平行于 W 面的直线，称为（ ）
A.
水平线
B.
正平线
C.
侧平线
D.
铅垂线
查看完整题目与答案
【单选题】在三面投影系中垂直于W 面的直线,称为( )。
A.
水平线
B.
正平线
C.
侧垂线
D.
垂直线
查看完整题目与答案
【单选题】在使用下列何种贸易昭语进行交易时,卒方匊时向买方发凚“已装船通瞤”至关重要,因为它将直接影响买卖双方对运输途中的风险承担。( )
A.
CIP
B.
DES
C.
FCA
D.
CFR
查看完整题目与答案
【单选题】Which of the following is TRUE?
A.
The honey-bee is blind to red.
B.
Man is more color-conscious than the honey-bee.
C.
The honey-bee can see far more colors than man.
D.
Man is sensitive to the ultraviolet.
查看完整题目与答案
【单选题】在三面投影体系中,垂直于W 面的直线,称为( )。
A.
水平线
B.
正平线
C.
侧垂线
D.
垂直线
查看完整题目与答案
【单选题】From the fifth paragraph we can learn that _________.
A.
the very rich are fashion-conscious
B.
the very rich are politically sensitive
C.
universal health care is to be implemented throughout America
D.
Congress has gained popularity by increasing the minimum wage
查看完整题目与答案
【单选题】There is probably no sphere of human activity in which our values and lifestyles are reflected more vividly than they are in the clothes that we choose to wear. The dress of an individual is a kind of...
A.
corresponds
B.
communicates
C.
exchanges
D.
transforms
查看完整题目与答案