The two Chinese scientists have made a wonderful discovery, which marks a major _______ in the basic research in the field.
#13677
A
reform
B
approach
C
boundary
D
breakthrough
推荐题目
It was from John, ____ gave me a big key to _____ my dad.
#13703
A
who; understand
B
that; understanding
C
who; understanding
D
which; to understand
A new case study says Chinese companies face tough _____in the US and have a long way to go to be successful.
#12552
A
challenges
B
campaigns
C
motivations
D
dilemmas
The book Robinson Crusoe ________ on the book by Daniel Defoe is well worth ______.
#13120
A
basing, reading
B
based, being read
C
based, reading
D
to be based, to read
My first ________ of him was that he was a kind and thoughtful young man.(2012·山东，24)
#11000
A
expression
B
attention
C
satisfaction
D
impression