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【简答题】
请在考生文件夹下建立一个项目KS3。 2.将考生文件夹下的数据库cust_m加入到项目KS3中。 3.为表cust建立主索引,索引名,索引表达式均为客户编号。 为表order1建立普通索引,索引名、索引表达式均为客户编号。 4.表cust和表order1必要的索引已建立,为两表建立永久性的联系。
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【单选题】下列关于直流电机的电动势的表达式正确的是______。(其中,CE--电机结构常数;Ia--电枢电流;T--电机电磁转矩;Φ--电机主磁极磁通;n--电机转速)
A.
E=CETΦ
B.
E=CEIaΦ
C.
E=CEnΦ
D.
E=CEnIa
【判断题】覆叠轨是图片专用轨道吗?
A.
正确
B.
错误
【单选题】______, he couldn’t get the door open.
A.
Might as he try
B.
As he might try
C.
Try as might try
D.
Try as he might
【单选题】We don't know what the surface of Venus might ______.
A.
look as
B.
look like
C.
look over
D.
look about
【单选题】“I her a long time ago,” he doubted, “She doesn’t look at all familiar.”
A.
might have met
B.
should have met
C.
might meet
D.
should meet
【单选题】对于直流电动机,下列表达式正确的是()。
A.
IN=PN/UNcosψN
B.
IN=PN/UNcosψN ηN
C.
IN=PN/UNηN
D.
IN=PN/UN
【单选题】下列关于直流电机的电动势的表达式正确的是()。(其中,KE--电机结构常数;Ia--电枢电流;T--电机电磁转矩;Φ--电机主磁极磁通;n--电机转速)
A.
E=KETΦ
B.
E=KEIaΦ
C.
E=KEnΦ
D.
E=KEnIa
【单选题】_______ he’d come to the door, he thought he might as well go in with the others to have a look.
A.
Now that
B.
However
C.
Although
D.
If
【单选题】If he had worked hard____.
A.
he might have passed the final exam
B.
he might pass the final exam
C.
he has passed the final exam
D.
he passed the final exam
【简答题】A.He might get his passport. B.He might get some money and clothes. C.He might make himself armed. D.He might make a call.
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