Usually a meteorological observatory (气象台) _____ air quality in urban areas from one to five: excellent, fairly good, slightly polluted, poor, and dangerous.
#13189
A
identifies
B
purifies
C
classifies
D
clarifies
推荐题目
Some people hold the view that the new machine is advanced, while others are still skeptical _____ whether it is of practical use.
#14015
A
with
B
about
C
for
D
on
Happy birthday, Alice！So you have ________ twenty－one already!
#11540
A
become
B
turned
C
grown
D
passed
The Students’ Union was founded for the________of them.
#10968
A
benefit
B
advantage
C
interest
D
value
If you cheat in the exam ,you could hardly ___________ it .
#10799
A
throw away
B
get away
C
get away from
D
get away with
Since drug abusers have difficulty＿the addiction, support groups where they can talk about their struggles and find new ways to manage in the world are often needed.
#11687
A
to rid
B
breaking
C
to remove
D
relieving