【单选题】【消耗次数：1】
不属于DSS模型库系统的是（）。
①
模型库
②
数据库
③
模型库管理系统
④
模型字典
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【简答题】
传统的数据模型分类，数据库系统可以分为三种类型：[填空]、网状数据库模型和关系数据模型。
随机题目
【单选题】
I see the Russian soldiers standing on the ________ of their native land, guarding the fields.
①
threshold
②
frontiers
③
entrance
④
gate
【单选题】
In June 1941 Hitler suddenly launched an attack ______ Russia.
①
for
②
to
③
on
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against
【单选题】
When I awoke on the morning of Sunday, the news was brought ______ me ______Hitler’s invasion of Russia.
①
for…of
②
to…on
③
to… of
④
for… on
【单选题】
Hitler was wrong and we should ______ to help Russia.
①
go out all@go all out
②
make out all
③
make all out
【单选题】
This is no time to moralize ______ the follies of countries which have allowed themselves to be struck down one by one.
①
to
②
on
③
by
④
in
【单选题】
Hitler was however wrong and we should ______ to help Russia.
①
make all out
②
make out all
③
go all out
④
go out all
【单选题】
In June 1941 Hitler suddenly ______ an attack on Russia.
①
launched
②
exerted
③
developed
④
created
【单选题】
He said that everyone should turn their backs _____ a craving for fame and prestige.
①
for
②
down
③
up
④
on
【单选题】
The subjugation of the western Hemisphere______ his will…
①
to
②
in
③
according to
④
against