To succeed in doing an experiment,________.
#94929
A
carefulness is needed
B
carefulness is one needs
C
one needs to be careful
D
one need be careful
推荐题目
This is the first time that I        it.
#92693
A
see
B
saw
C
had seen
D
have seen
To make China _________ the USA in science and technology, we need more talents. 
#92244
A
as a strong country as
B
strong as a country as
C
as strong a country as
D
as stronger as
. ________ that I was puzzled.
#94083
A
So difficult a question did he ask me
B
Such difficult a question did he ask me
C
Such a difficult question he asked me
D
He asked me a so difficult question