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【单选题】
预裂爆破最先起爆的是( )。
A.
掏槽眼
B.
辅助眼
C.
周边眼
D.
预裂眼
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【判断题】若属性A是基本关系R的主属性,A可以取空值
A.
正确
B.
错误
【单选题】¿ cuál es la que no tiene nada que ver con la religión?
A.
La Navidad
B.
el Año Nuevo
C.
los Reyes Magos
D.
la corrida de toros
【单选题】It was _____ she was injured in the accident _____ she didn't come to the party yesterday. [     ]
A.
as; which
B.
because; that
C.
since; why
D.
for; how
【简答题】novelty
【多选题】根据参照完整性规则,若属性组F是基本关系R的外码,F与基本关系S的主码相对应,则F在R中的取值可以是( )。
A.
等于R中某个主码值
B.
等于S中某个主码值
C.
可取空值
D.
不可取空值
【单选题】Novelty
A.
小说
B.
创作
C.
新颖
D.
奇特的
【单选题】It was __________she was injured in the accident _______ she didn’t come to the party yesterday.
A.
as; which   
B.
because; that    C since; why     D. for; how
【简答题】(reveal, novelty, dispute, immune, inspire, extract, substance, incite, reconcile, consult) 2. 这种青霉素非常罕见,能够产生大量抗菌物质。 It was a rare type extraordinarily productive in antibacterial ________.
【判断题】La religión es un conjunto de creencias y dogmas.
A.
正确
B.
错误
【单选题】The asocial personality of Americans may stem from ______.
A.
the absence of a common religion and ancestry
B.
the multiracial constituents of the US society
C.
the want of a shared myths they possess in life
D.
the counterbalance to narcissistic personality
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