题目内容
(请给出正确答案)
[单选题]
The University of California, () in 1868, is very famous.
A.founded
B.was founded
C.is founded
D.to have been founded
查看答案
如果结果不匹配,请 联系老师 获取答案
A.founded
B.was founded
C.is founded
D.to have been founded
A.A; is
B.The ;are
C.A; are
D.The ;is
A、at the university
B、at university
C、in the college
D、at the college
B.to have improved
C.improving
D.improved
A.As
B.Since
C.When
D.If
A.44
B.60
C.90
D.120
B.a cheaper
C.than
D.paid for
交叉认证技术可以保证()。
A、开展CA的信任范围
B、使不同信任体系的CA实现相互信任
C、提高交易速度