Science and technology have ____in important ways to the improvement of agricultural production.
#84134
A
attached
B
assisted
C
contributed
D
witnessed
推荐题目
-- I’m still working on my project. -- Oh, you’ll miss the deadline. Time is __________.
#64867
A
running out
B
putting out
C
running out of
D
using up
The great achievements in recent 30 years have proved that the reform and open policy is a vital measure that ________ the national conditions of China.
#67981
A
fits into
B
turn into
C
break into
D
look into
Father asked me to practice ___ English every morning.
#81124
A
to speak
B
speak
C
speaking
D
to speaking
You must ______ a wide vocabulary if you want to learn a language well.
#69288
A
set up
B
put on
C
settle down
D
build up
Today country music can _____between 200 and 400 million dollars a year.
#83956
A
bring down
B
bring in
C
bring out
D
bring up