A.like
B.as
C.with
D.for
第1题:
A.Chinese - Americans
B.American Indians
C.Japanese - Americans
D.black Americans
第2题:
第3题:
The UK economy can be divided into three main sectors()industries,secondary industries and()industries.
primary;tertiary
略
第4题:
The survival of civilization as we know it is _____ threat.
(A) within (C) towards
(B) under (D) upon
B
正如我们所知,文化的幸存部分正受威胁
第5题:
第6题:
13、根据MySQL的示例数据库World,假设有如下关系R(CityID, CityName,CountryCode,Continent),以下做主键最理想的是?
A.CityID
B.CityName
C.CountryCode
D.Continent