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【多选题】
Consider a relation Student(Sid,name,school,dean). In the database requirement, Sid is the ID of a student and there isn’t any two students with same Sid. Two students may have same name. A student have only one name. A student study in one school. And there is only one dean in a school. A teacher may act as the dean of two schools. Based on these facts, Which of the following FD’s hold in Student? (This is a multiple choice question)
A.
Sid → name
B.
name → school
C.
school → dean
D.
dean → school
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参考答案：
举一反三
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烤炉
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工具
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工作台
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【单选题】In addition to the ______ contents displayed, you will be able to find updated information on recent events.
A.
durable
B.
enduring
C.
permanent
D.
solid
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【单选题】—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
A.
Not a little
B.
Not a chance
C.
Not to mention it
D.
Not a big deal
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【单选题】—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
A.
Not a chance
B.
Not a little
C.
Not to mention it
D.
Not a big deal
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【单选题】We trust that you will be able to accept our offer, which shal() against reply by cable
A.
kept open
B.
keep valid
C.
be kept firm
D.
be keeping open
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【单选题】We trust that you will be able to accept our offer, which shall() against reply by cable
A.
kept open
B.
keep valid
C.
be kept firm
D.
be keeping open
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【单选题】以下不宜用水清洗,可以干擦,擦拭时关闭电源,以防触电。( )
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【简答题】A．You will be able to make them larger. B．You will be able to make them smaller. C．They will be sporty. D．They only exist in the woman's head.
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【单选题】—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
A.
Not a little
B.
Not a chance
C.
Not to mention it
D.
Not a big deal
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【简答题】In the future your automobile will run on water instead of gas! You will be able to buy a supercomputer that fits in your pocket! You might even drive a flying car! Not all past predictions have been ...
查看完整题目与答案
【单选题】—Do you think you will be able to finish your writing by five o’clock today? — ______. I’ll be busy with experiments all day.
A.
Not a chance
B.
Not a little
C.
Not to mention it
D.
Not a big deal
查看完整题目与答案
【单选题】We trust that you will be able to accept our offer, which shal() against reply by cable
A.
kept open
B.
keep valid
C.
be kept firm
D.
be keeping open
查看完整题目与答案
【单选题】We trust that you will be able to accept our offer, which shall() against reply by cable
A.
kept open
B.
keep valid
C.
be kept firm
D.
be keeping open
查看完整题目与答案
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