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【判断题】
在E-R图向关系模型转换的过程中,无论是一个1:1的联系,一个1:n的联系还是一个m:n的联系,都可以转换为一个独立的关系模式。A.
正确
B.
错误
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【单选题】Future generations of physicists may look at the ______ of their former ideas and see in it, not the relics of some extinct creature, but a crude, early, yet wholly ______ version of their more modern...
A.
mockery … distinct
B.
armature … laughable
C.
specter … congruous
D.
skeleton … recognizable
E.
treatment … suspect
【单选题】Antique furniture ______ .
A.
may have had many former owners
B.
is on sale mainly in London salerooms
C.
has usually been polished before being sold
D.
has usually been rejected
【单选题】Which of the following may best describe the tone of the speech by the former U.S. President Carter?
A.
Doubtful and uncertain
B.
Friendly and hopeful
C.
Serious and critical
D.
Casual and friendly
【单选题】The science lab being built in our school is ____________ the former one.
A.
twice as big as
B.
twice more bigger than
C.
as twice big as
D.
the twice size of
【多选题】按《美国对外贸易定义修订本》的解释,下列( )术语后必须加Vessel"才能与《2010通则》解释一致?
A.
EXW
B.
FAS
C.
CFR
D.
FOB
E.
DES
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