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
Tom didn’t break the glass by accident．It was _________．
#14148
A
intend
B
intention
C
intentional
D
intentionally
(2013·河北衡水中学模拟)Some young people these days just ________ go out of their homes to contact the real world.
#11311
A
mustn't
B
won't
C
mightn't
D
shouldn't
The couple did have a quarrel about money last night, but now they have already .
#13932
A
taken up
B
made up
C
put up
D
brought up
This restaurant has become popular for its wide ________ of foods that suit all tastes and pockets.
#11189
A
division
B
area
C
range
D
circle
The teacher was worried about the boys in her class, for they spent ______ time playing computer games.
#13427
A
large amount of
B
a large number of
C
a large amount of
D
large numbers of