A.被引证的机密资料
B.公众不知悉,被许可方亦不知悉的资料
C.许可方公开或被他人窃取而泄密的资料
D.许可方或第三方已发表的资料
A.错误
B.正确
The mason ______ I didn't do this exercise is I didn't know how to do it.
A.why...because
B.why...that
C.for...that
D.that...because
-How do you know so much about teaching?-I use to be a school teacher.()
A.错误
B.正确
How do you know ______ direction ______ ?
A.which; driving
B.which; to drive to
C.in which; to drive
D./; flying to
A.literary
B.humour
C.grammatical
D.circular
B.Think nothing of it
C.With pleasure
D.Glad to hear that
A.as
B.which
C.that
D.the one