Our       new machines are much cheaper to run.
#17719
A
effective
B
efficient
C
energetic
D
enthusiastic
推荐题目
 Though he was _______, he looked down upon those who had a lot of money.
#18731
A
well off
B
rich
C
badly off
D
well-known
Her husband was _____ to make a fortune, but finally failed.
#18480
A
proud
B
anxious
C
eager
D
content
He is my favorite film star. I regard him _____ other stars.
#18847
A
more superior to
B
more superior than
C
superior to
D
superior than